All Harry Potter Book and Movie Differences

Movie

Book

Begins with Dumbledore using the Deluminator and speaking with McGonagall. There are no mentions of Muggles noticing weird things happening.

Begins with Vernon Dursley noticing strange people, owls, a cat, and more during his work day at Grunnings.

McGongall says “You-Know-Who”.

McGongall says Voldemort’s name.

Hagrid does not mention where he got the flying bike from.

Hagrid mentions that the bike is from Sirius Black.

Aunt Petunia and Dudley have dark hair

Aunt Petunia and Dudley have blonde hair

Movie

Book

Harry goes with Dudley, Vernon, and Petunia to the Zoo with little complaint.

They try to get Mrs. Figg, Vernon’s sister Marge, or Petunia’s friend to watch Harry but all are preoccupied. They reluctantly take Harry with. Dudley’s friend, Piers Polkiss, is also there.

The snake is from Burma.

The snake is from Brazil.

The snake says “thanks” to Harry as he slithers away.

The snake says “thanks amigo” as he leaves.

The glass suddenly returns, trapping Dudley inside the reptile house.

The glass remains gone and the reptile house keeper asks where the glass went.

Vernon says “There’s no such thing as magic” as he locks Harry in the cupboard.

Vernon is so furious he can barely speak, saying “Go- cupboard- stay- no meals.”

Movie

Book

Dudley is wary of Harry, as if he knows he is different.

Dudley has no idea what’s going on and he’s just as oblivious as Harry.

Harry doesn’t get Dudley’s second bedroom until after his first year at Hogwarts. It’s mentioned at the start of the second movie.

Harry gets Dudley’s second bedroom and the address on the letters to Harry change.

Vernon is only shown burning the letters and closing up the mail slot.

Vernon sleeps in front of the door to catch the letters and Harry steps on his face.

Vernon takes Harry and his family straight to the island hut.

Vernon stops at a hotel first. He is also constantly stopping his car and looking for a place to hide.

It is not shown how they got to the island hut.

A toothless old man with a rowboat takes them to the island hut.

Movie

Book

Hagrid mistakes Dudley for Harry at first.

Hagrid recognizes Harry immediately.

Hagrid bends the gun and it fires.

Hagrid takes the gun and ties it in a knot.

Hagrid brings Harry a birthday cake.

Hagrid does not bring a cake, but cooks sausages for Harry.

Hagrid sees Dudley eating Harry’s cake and curses him to have a big’s tail.

Hagrid curses Dudley because Vernon insults Dumbledore.

Hagrid only mentions he isn’t allowed to do magic.

Hagrid tells Harry he was expelled from Hogwarts.

Movie

Book

Hagrid doesn’t explain how Harry’s parents died until after their trip to Diagon Alley.

Hagrid tells Harry about Voldemort and how his parents died at the hut.

Quirrell has a turban and refuses to shake Harry’s hand when they meet.

Quirrell does not have a turban when they first meet and shakes Harry’s hand.

Harry is alone when he gets his wand and Hagrid shows up with Hedwig as a birthday gift.

Hagrid is with Harry at Ollivanders. He sits in a chair and accidentally breaks it. Harry goes with him to get an owl, naming her Hedwig from a History of Magic book.

Harry tries 2 wands before finding the one.

Harry tries a multitude of wands.

Harry doesn’t meet Draco Malfoy until they are at Hogwarts.

Harry meets Draco Malfoy for the first take at Madam Malkin’s in Diagon Alley.

Harry learns about Quidditch in his first Flying class. 

Draco tells Harry about Quidditch when they first meet. 

After getting his supplies, Hagrid takes him straight to King’s Cross Station.

Harry returns to live with the Dursleys for a month. Vernon drops him off at King’s Cross. 

Movie

Book

Harry only sees Fred and George from a distance. 

Harry meets Fred and George on the platform and they help him load his trunk onto the train, before excitedly telling their family they met him.

Ron doesn’t know who Harry is when he sits with him.

Ron already knows who Harry is when he sits down with him.

Harry reads Flamel’s name on Dumbledore’s chocolate frog card.

Harry doesn’t learn about Flamel until Hermione finds his name in a book.

Hermione stops by the compartment, asking if they’d seen a frog because a boy named Neville had lost one.

Neville stops by their compartment to ask if they’ve seen his frog. He returns later with Hermione.

Malfoy introduces his friends and insults Ron before the Sorting Ceremony.

Malfoy, Crabbe, and Goyle enter the compartment, insulting Ron, and asking Harry to be their friend. A small fight breaks out, where Scabbers bites one of them.

Ron is shorter with an average nose. Hermione has normal teeth.

Ron is described as very tall and lanky with a large nose. Hermione is described as having bushy hair and big front teeth.

Movie

Book

Snape keeps quizzing Harry, who doesn’t know the answer, and remains rather silent.

When Snape is quizzing Harry and Hermione keeps raising her hand, he sarcastically tells him to ask Hermione since she seems to know.

The scene ends after Snape’s attempt to humiliate Harry.

Snape continues to take points from Gryffindor over silly things. He takes points for Harry not telling Neville to not put a certain ingredient in his cauldron.

Movie

Book

Ron gets hit in the face by his broom during Flying Class.

This never happens.

McGonagall calmly approaches Harry after seeing him fly.

McGonagall is frustrated with Harry after seeing him fly. Ron and one of the Patil twins come to his defense.

McGonagall takes Harry to Oliver Wood, who is in Defense Against the Dark Arts class. They talk about Harry being a seeker in the hallway.

McGonagall takes Harry to Oliver Wood, who is in Charms class. They talk about Harry being a seeker in a classroom, where they run into Peeves.

Harry learns that his father used to be a seeker when Hermione finds his name on a trophy.

McGonagall tells Harry that his father used to be a seeker.

The duel does not happen in the book. Harry, Ron, and Hermione accidentally find Fluffy when the staircase changes on them. They end up on the third floor and are almost caught by Filch. 

Malfoy challenges Harry to a duel. Harry and Ron sneak out. Hermione goes after them to stop them. They find Neville outside the entrance of the common room because he forgot the password. The Fat Lady is gone so they can’t get back in. Malfoy tipped off Filch and they’re all nearly caught. They end up running into Fluffy while trying to find a place to hide.

Movie

Book

Harry receives the broom after the Troll attack and there is no message. 

Harry receives the Nimbus 200 with a message and starts his training. This is before the Troll attack.

Ron suspects someone is playing a prank.

Ron thinks Peeves let the Troll in.

Harry and Ron run into the girls bathroom to save Hermione.

Not realizing the Troll has entered the girls bathroom, Harry and Ron accidentally lock it in there with Hermione and have to run back and save her.

Seamus Finnigan blows up a feather and his drink.

Seamus Finnigan doesn’t blow stuff up in the books.

Movie

Book

Harry sees Snape’s injured leg when the teachers show up in the girls bathroom.

Snape takes Harry’s Quidditch Through the Ages book. When Harry tries to steal it back, he sees Snape bangaging his wounded leg.

Hermione sets Snape’s robes on fire. In his attempt to stamp it out, he knocks over Quirrell. 

Hermione knocks over Quirrell while running to the teacher’s stand to set Snape’s robes on fire.

Movie

Book

This does not happen.

Fred and George bewitched snowballs to follow Quirrell and hit him in the back of the head.

Harry receives a sweater from Ron’s mom and the Invisibility Cloak for Christmas.

Harry receives the cloak and sweater plus a wooden flute from Hagrid, Chocolate Frogs from Hermione, and a fifty pence piece from his aunt and uncle.

Ron immediately recognizes that the cloak is an Invisibility Cloak.

Ron does not know what the cloak is.

Harry sees his parents in the Mirror of Erised.

Harry sees his parents and grandparents in the mirror.

Movie

Book

This does not appear in the movie.

Snape referees a Gryffindor-Hufflepuff match, which has the trio worried because they believe he tried jinxing Harry’s broom.

Harry overhears Snape and Quirrell's argument while under his cloak, trying to escape the restricted section.

Harry sees a hooded figure run off into the Forbidden Forest after the match and follows overhead with his broom. He overhears Snape and Quirrell’s argument.

This doesn’t happen.

During the match, Ron and Neville get into a fistfight with Draco, Crabbe, and Goyle.

Movie

Book

Hagrid mentions Norbert was taken and sent to Romania.

The trio help send Norbert to Ron’s brother, Charlie, who works with dragons in Romania.

Draco sees Harry, Ron, and Hermione at Hagrids and they all get detention. 

Harry and Hermione sneak the dragon to the top of the Astronomy Tower. They leave the cloak and are caught by Filch. Neville is caught too, because he was trying to warn them that Malfoy (who was also caught) saw them at Hagrid’s Hut.

Neville does not get detention since he is not a part of what took place.

Ron is recovering in the Hospital Wing after being bitten by Norbert, therefore he isn’t with Harry and Hermione to get detention. Since Neville got caught, he also gets detention.

Movie

Book

No one reacts to Harry and his friends losing so many house points.

Other Gryffindors start disliking Harry and his friends for constantly losing house points.

During detention, Harry goes with Malfoy and Fang.

During detention, Harry is first paired with Hagrid and Hermione. Malfoy and Neville are paired. They later switch.

Only one centaur, Firenze, the one that saves Harry, is introduced.

Two more centaurs are introduced, Ronan and Bane.

The others find Harry talking with Firenze after seeing Voldemort.

Firenze takes Harry to Hagrid and the others.

Movie

Book

No such incident happens.

Harry is almost caught by Peeves while under the Invisibility Cloak. He impersonates the Bloody Baron, who Peeves is scared of.

There is harp in the room, already playing.

The trio use the flute Harry got for Christmas to put Fluffy to sleep. 

When the trio fall into the Devil’s Snare, Hermione relaxes and this allows her to escape. She tells Harry and Ron to do the same, but Ron continues to panic and Hermione uses Lumos Solem to scare away the plant and free him.

When the trio fall into the Devil’s Snare, Hermione gets on the wall and avoids the plant. She is panicking and Ron snaps her out of it. She uses the Blueball Flames to scare it away.

Harry is the only one to get on a broom and chase the keys.

All three of them get on a broom to chase the keys.

The chess pieces destroy one another.

The chess pieces knock each other out and drag the piece off the edge when defeated.

After the chess match, Hermione stays with Ron and Harry goes on alone to face Quirrell.

There are two more obstacles in the book. Quirrell’s mountain troll, which is already knocked out when the trio find it, and Snape’s Potion Puzzle. Hermione continues on with Harry after the chess match and helps him solve the puzzle, giving him the potion he needs to move forward.

Movie

Book

Quirrell snaps his fingers and blocks Harry’s path with fire.

Quirrell snaps his fingers and ropes wrap themselves around Harry.

Harry kills Quirrell by touching him, which turns him to dust.

Harry’s touch leaves blisters on Quirrell’s body. Voldemort leaving Quirrell’s body kills him.

Harry reunited with his friends on the stairs.

Harry reunited with his friends in the Hospital Wing.

Hagrid gives Harry a photo album of his parents at the train station.

Hagrid gives Harry a photo album of his parents at the Hospital Wing.

The movie ends with the train leaving the platform.

Harry meets his Uncle Vernon and the rest of his family at King's Cross.

Movie

Book

The movie begins with the Dursleys getting ready for the Masons.

The book begins on Harry’s birthday, where he spots Dobby in the hedges outside.

Harry is given Dudley’s second bedroom during the summer.

Harry was already given Dudley’s second bedroom before he left for his first year at Hogwarts.

This doesn’t happen.

Harry is banned from saying the word magic, but he still tries to scare Dudley. He didn’t tell the Dursleys he couldn’t use magic outside of school.

Movie

Book

Dobby is jumping on Harry’s bed.

Dobby is sitting quietly on Harry’s bed.

Dobby does not mention Voldemort.

Dobby mentions that Voldemort could be behind the bad things that are about to happen at Hogwarts.

Dobby drops the cake on Mrs. Mason’s head.

Dobby drops the cake in the kitchen and it explodes all over Harry.

The Masons leave because of the cake.

The Masons leave after Mrs. Mason, who is scared of owls, sees an owl delivering a letter.

Vernon places bars on Harry’s window.

Vernon has a worker place bars on Harry’s window.

No dreams are shown.

Harry has a nightmare about being trapped in a zoo cage.

Movie

Book

Harry loads up his trunk and Hedwig into the flying car. Vernon, who was woken up by the sound of the bars breaking, grabs Harry’s leg and falls out of the window, landing into the hedges below.

Fred and George sneak in and pick the lock to Harry’s bedroom and the cupboard, where his trunk is hidden. Harry almost forgets Hedwig, and her screech wakes up the Dursleys. All three of them try to stop Harry and end up dangling out the window.

This is not mentioned.

On the way to the Burrow, one of the Weasleys suggests Dobby is a servant of the Malfoys.

This doesn’t happen.

Mrs. Weasley makes them de-gnome the garden and they teach Harry how to toss the gnomes out.

Movie

Book

Arthur asks Harry about the function of a rubber duck.

Arthur asks Harry about escalators.

A similar deleted scene is included, but is not found in the standard version of the movie.

Harry overhears Draco and his father selling something to the owner of Flourish and Blotts.

Hermione repairs Harry’s glasses.

Mrs. Weasley repairs Harry’s broken glasses.

Arthur and Lucius get into a verbal argument.

Arthur Weasley gets into a physical fight with Lucius Malfoy.

Gringotts is not shown.

Harry and Ron go to Gringotts for money and Harry feels guilty about how much he has.

Movie

Book

While using the flying car to get to Hogwarts, Harry and Ron are nearly hit by the train. Harry almost falls out of the car.

This doesn’t happen.

Filch finds Harry and Ron and takes them to Snape’s office.

Snape finds them and brings them to his office.

This doesn’t happen.

Harry and Ron eat sandwiches in Snape’s office and McGonagall tells Ron that Ginny was placed in Gryffindor.

Movie

Book

The howler message turns into lips and gets straight to the point.

The howler message is not described as turning into lips and its message is much longer.

The howler rips itself apart when it’s done.

The howler burst into flames.

This does not happen.

Lockhart implies that he knows more about fixing the Whomping Willow than Professor Sprout. Afterwards, Lockhart lectures Harry about giving out autographs when Collen asks for one.

This isn’t included.

Justin Finch-Fletchy tries to befriend Harry in Herbology class.

Lockhart jumps straight into the lesson, but the quiz is included in a deleted scene.

Lockhart makes the class take a test over his books, which includes questions like “What is my favorite color?”

The Pixies break windows and a skeleton dragon that was on display. Everyone runs out and Lockhart runs to his office. Hermione freezes all the Pixies with a spell.

The Pixie’s wreak havoc while students (and Lockhart) hide under their desks. Neville nearly falls on Lockhart. Hermione freezes a few of the Pixies.

Movie

Book

Hermione knows what Mudblood means and explains it to Harry.

Hermione doesn’t know what the term means and it’s Ron who explains it.

Movie

Book

In a deleted scene, Harry finds a letter that Filch dropped with the words Kwikspell on it.

Harry finds a Kwikspell course in Filch’s office and learns that he is a Squib.

The Deathday Party isn’t included in the movie. Harry hears the voices during detention with Lockhart and finds Mrs. Norris after.

Nearly Headless Nick invites the trio to his Deathday Party. Afterwards, Harry hears the voices and finds Mrs.Norris.

Movie

Book

The teachers talk to the trio in the hallway.

The teachers talk to them in Lockhart’s classroom.

The message is written in blood.

The message is written in red paint.

Movie

Book

Hermione finds the recipe for Polyjuice Potion in a normal book.

Hermione has to get a note signed by Lockhart so they can get the book from the restricted section.

On a sunny day, the Bludger chases Harry as he races Malfoy for the snitch.

The Quidditch match happens on a rainy day and Harry catches the snitch before Malfoy notices it. There is no chase scene.

The entire team, plus Harry’s friends, are in the Hospital Wing to see Harry and Madam Pomprey demands that they get out of her way.

Ron and Hermione are with Harry in the Hospital Wing. When the team shows up to check on him, Madam Pomprey kicks them out.

Movie

Book

This doesn’t happen.

The trio cause a disturbance in Potions class to steal Polyjuice Potion ingredients from Snape.

The duel between Harry and Malfoy is the only duel that takes place.

Everyone pairs up with partners. Hermione and Milicent end up getting into a fight, Milicent putting Hermione in a headlock. This is how Hermione gets the hair off her robes for the potion.

Rictusempra spell throws opponent back. 

Rictusempra is a tickle charm.

Harry overhears people whispering about him in a deleted scene.

Harry overhears Ernie, Justin’s friend, talking to Hannah. He says Harry wants to attack Justin.

Harry speaks Parseltongue and the audience only hears hissing noises and not what Harry thought he was saying.

Harry’s perspective is shown when he speaks Parseltongue, so the audience understands him. He learns from his friends later that it sounded like hissing noises.

Nearly Headless Nick is vertical, white, and smoking when petrified.

Nearly Headless Nick is floating horizontal and black when petrified.

Filch finds Harry after Justin’s attack.

Peeves finds Harry after Justin’s attack.

Movie

Book

Harry sees the Sorting Hat on a shelf in Dumbledore’s office and asks if he’s in the right house.

Harry puts on the Sorting Hat in Dumbledore’s office and asks if he was put in the right house.

The trio drink the potion together and the transformation is less painful.

The trio drink the potion in their own stalls and the transformation is described as painful.

Harry and Ron’s voices don’t change. Harry’s eyesight also remains bad and he is caught by Malfoy wearing his glasses.

Harry and Ron’s voices change to match Crabbe and Goyle. Harry’s eyesight also improves.

These details do not appear in the movie. However, Malfoy has a package that does not appear in the book.

Malfoy shows them an article about Arthur Weasley’s inquiry and the Ministry. He mentions Dumbledore loving Muggle-borns and mimics Colin Creevy.

Movie

Book

Professor McGonagall explains the Chamber of Secrets in class.

Professor Binns, the History of Magic Teacher, explains the Chamber of Secrets. 

This doesn’t happen in the movie.

Professor Lockhart arranges a Valentine's Day breakfast in the book.

Harry finds the diary in Moaning Myrtle's bathroom.

Harry gets a Valentine and Malfoy tries to steal Tom Riddle’s diary. Harry uses a spell to disarm him and is scolded by Percy.

The ink in the diary is black.

The ink in the diary is red, like blood.

Harry appears on the Grand Staircase, where he sees the body of Myrtle being taken away. Tom Riddle speaks to Dumbledore, who mentions the school might close. 

When Harry is pulled into the past, he is in the Headmaster’s office where Professor Dippet reads a letter from Tom Riddle. Dippet tells Tom the school might be closed. Tom briefly talks to Dumbledore.

Movie

Book

McGongall approaches the team in person and they are less upset.

McGonagall cancels the Gryffindor-Hufflepuff match with a megaphone and the team is upset.

No mention of Ginny acting strangely is included in the movie.

Ginny tries to tell Ron and Harry about her secret. It is mentioned throughout the book that Ginny acts oddly every time there’s an attack.

This character is not included.

Penelope Clearwater, a Ravenclaw student, is petrified.

The line “the crowing of the rooster is fatal to the Basilisk” is not added, however Hagrid does charge into Dumbledore’s office holding a dead rooster earlier in the film.

Hagrid’s roosters are killed. There is a line about the Basilisk saying “the crowing of the rooster is fatal to the Basilisk.”

Movie

Book

Harry and Ron notice the spiders leaving Hagrid’s Hut and follow them into the forest.

They notice the spiders during Herbology class one day. They wait until everyone is asleep to sneak out of their dorm.

Ron is very afraid of spiders and is scared the entire time. He even says “Why couldn’t we follow the butterflies?” as they head into the forest.

Ron is scared of spiders but much braver. Ron’s line about following butterflies is not in the book.

Harry and Ron find the lair on their own.

Harry and Ron lose the trial and end up being dragged into the lair of spiders.

Movie

Book

Harry and Ron overhear the teachers in the hallway and see the writing for themselves.

Harry and Ron are hiding in a wardrobe and overhear the teachers in the Staffroom mention the final message and vote for Lockhart to find the Basilisk.

When confronting Lockhart, Harry and Ron point their wands at him and he drops his.

They use the disarming charm and throw Lockhart’s wand out a window.

Movie

Book

The Basilisk uses its sense of hearing to find Harry after being blinded.

The Basilisk uses its sense of smell to find Harry after being blinded.

The Basilisk chases Harry through tunnels and Harry eventually climbs onto the statue of Salazar Slytherin and stabs the Basilisk.

The fight between Harry and the Basilisk happens quickly and he never climbs onto the statue.

The Sword of Gryffindor appears in the hat while on the ground.

Harry puts on the hat and asks for help. The sword comes falling out, hitting Harry on the head.

Harry stabs the diary multiple times and Tom explodes in a burst of light. Fawks heals Harry after Ginny wakes up.

Fawks heals Harry’s arm and then he destroys the diary by stabbing it once. Tom Riddle writhes and disappears.

Fawks carries everyone out of the mouth of the cave. The scene cuts to Dumbledore’s office.

They end up back in Myrtle’s bathroom and go to McGonagall’s office.

Movie

Book

Harry and Ron are in Dumbledore’s office.

Harry and Ron are in McGonagall’s office. Arthur, Molly, and Dumbledore are there.

This does not happen in the movie.

Dumbledore awards them 200 points each for saving Ginny.

There is no mention of what happens to Lockhart. Dumbledore sends Ron with papers to mail to ensure Hagrid’s release from Azkaban.

Dumbledore asks Ron to take Lockhart to the hospital.

Harry follows after Lucius and confronts him in the hallway.

Harry confronts Lucius in Dumbledore’s office, with the headmaster present.

Harry puts a sock in the diary, which is then handed to Dobby.

Harry puts the diary in a sock. When Lucius throws the sock, Dobby catches it.

Not included.

Gryffindor wins the house cup.

Hermione only hugs Harry.

Hermione hugs both Harry and Ron.

Hagrid states that he is late because the bird with his release papers got lost.

This does not happen in the book.

Movie

Book

Harry performs Lumos Maxima spell under his blanket.

Harry is using a flashlight.

Harry doesn’t receive any gifts for his birthday and learns about the Weasley’s trip to Egypt later on. The Care of Magical Creatures book attacks him at the Leaky Cauldron.

Harry receives birthday gifts from his friends and learns about their trip to Egypt. One of the gifts is the Care of Magical Creatures book that attacks him. 

Movie

Book

Aunt Marge is only there for one day.

Aunt Marge stays at the Dursley house for a few days.

Harry is serving the Dursley food when he blows up Aunt Marge.

Harry is seated at the dining room table when he blows up Aunt Marge.

Aunt Marge floats out of the open doors and into the sky.

Aunt Marge floats to the ceiling but doesn’t leave the house.

Sirius, in his animagus form, growls and barks when he sees Harry.

Sirius only stares at Harry.

Movie

Book

Harry doesn’t give the conductor a name.

Harry gives the conductor Neville’s name.

There is a talking, shrunken head at the front of the bus.

There is no shrunken head.

This never happens.

Harry asks Fudge to sign his Hogsmeade permission slip but he refuses.

Harry stays at the Leaky Cauldron for a day.

Harry stays at the Leaky Cauldron for two weeks.

Movie

Book

Harry reunites with Ron and Hermione in the Leaky Cauldron, where Hermione already has Crookshanks.

Harry meets Ron and Hermione in Diagon Alley. They go to Magical Menagerie and Hermione buys Crookshanks.

Movie

Book

This doesn’t happen.

On the Hogwarts Express, Ginny, Neville, and Malfoy stop by Harry’s compartment.

There is a singing choir at Hogwarts.

No choir sings at the Start of Term feast.

Movie

Book

Some classes are not included.

The trio go to Transfiguration and Potions class. McGonagall shows them how she transforms into her animagus form.

Hermione grabs Ron’s hand when she’s worried about Harry in the Care of Magical Creatures class.

This doesn’t appear in the book.

Buckbeak takes Harry over the Black Lake and Harry shouts in excitement.

Buckbeak flies over part of the Forbidden Forest. Harry prefers riding on his broom.

A character named Bem makes a few ominous comments here and there.

This character does not appear in the books.

Movie

Book

Hermione appears next to Harry and Ron in the Defense Against the Dark Arts class.

Hermione disappears on their way to class and then reappears a few feet behind them.

Parvati Patil’s boggart is a giant snape and Ron’s is a spider that ends up on roller skates when he casts Riddikulus.

Parvati Patil’s boggart is a mummy and Ron’s is a spider that loses its legs when he casts Riddikulus.

Movie

Book

After the Fat Lady is attacked, they find her in a nearby portrait and she explains what happens.

Peeves described what happened to the Fat Lady.

It’s never mentioned what happens to the Fat Lady after.

Sir Cadogan takes over the Fat Lady’s role while she recovers.

When Harry can’t go to Hogsmeade, he hangs out with Lupin on the Wooden Bridge and they talk about Lily.

When Harry can’t go to Hogsmeade, he hangs out in Lupin’s office and sees a Grindylow. Lupin also brings up his friends, James and Lily Potter.

Movie

Book

When Snape teaches DADA, he uses a projector and calls Hermione a know it all.

There is no projector when Snape teaches DADA. He takes points from Gryffindor for Harry being late, Hermione getting answers right, and then gives Ron detention for standing up for Hermione.

The Quidditch team uses goggles in the rain.

Hermione casts a spell so Harry can see in the rain during his Quidditch match.

Katie Bell crashes into the stands with her broom on fire. The Hufflepuff seeker is struck by lightning before Harry falls off his broom. No one catches the snitch.

Katie Bell doesn’t crash into the stands. After Harry falls off his broom, the Hufflepuff seeker, Cedric, catches the snitch.

Movie

Book

Harry visits Hogsmeade once. Alone, he overhears Fudge reveal that Sirius is Harry’s godfather.

Harry visits Hogsmeade twice, and Ron and Hermione are with him when he overhears Fudge.

There is one scene where Harry is angry.

Harry’s anger lasts for days.

Movie

Book

Harry gets the Firebolt at the very end of the movie.

Harry receives the Firebolt as a Christmas gift. Hermione doesn’t trust it, so she tells McGonagall, who confiscates it to check for jinxes. 

Movie

Book

Harry’s happy memory to ward off the Demetors is a memory of his parents that he isn’t sure is real.

Harry’s happiest memory is when he learned he’d be leaving the Dursleys.

Movie

Book

The Gryffindors all gathered in the common room after the attack is included in a deleted scene.

Sirius tries to kill Wormtail, disguised as Scabbers, one night while Ron is sleeping with him. He wakes to find his curtains slashed.

This match is not included and Harry doesn’t meet Cho until the next movie.

Harry meets Cho in the Gryffindor-Ravenclaw Quidditch match.

Movie

Book

Harry attacks Malfoy and his friends with snowballs while under the Invisibility Cloak, making Ron and Hermione laugh.

When Harry attacks Malfoy and his friends while under the Invisibility Cloak, he throws mud-balls at them and Hermione is not there. His cloak slips off and Malfoy sees his face.

Snape doesn’t take the map from Harry until he catches him wandering the corridors alone at night.

Snape catches Harry leaving the One-Eyed Witch Passage and takes his map. Ron is also with him and claims they got the map from Zonko’s Joke Shop.

The map has one insulting message for Snape.

Each Marauder has an insulting message for Snape.

Movie

Book

Hermione draws her wand and then punches Malfoy.

Hermione slaps Malfoy.

This doesn’t happen.

On their way to Charms, Hermione disappears. Harry and Ron later find her asleep on a book in Gryffindor tower.

Movie

Book

Harry hears Trelawney’s prophecy when he is bringing a crystal ball back to class.

Trelawney’s prophecy happens during Harry’s exam.

When visiting Hagrid, the trio are sitting inside. Someone throws rocks at them to get their attention. This is where they notice Dumbledore, Fudge, and the executioner coming their way.

When visiting Hagrid, the trio go to his garden to comfort Buckbeak. Hagrid sees Dumbledore, Fudge, and the executioner coming their way.

Movie

Book

After watching Buckbeak’s execution, Hermione hugs Ron and starts crying.

She doesn’t do this in the book.

Crookshanks is only shown a few times in the movie when Ron mentions she's been attacking Scabbers.

Crookshanks shows trust towards Sirius in his animagus form but attacks Scabbers because she can recognize good and evil.

When Ron is captured, he is freaking out and Hermione is calm.

When Ron is captured, he stays calm and Hermione is more freaked out.

Sirius injures Ron’s leg as he drags him away.

Sirius drags Ron by the arm and a Whomping Willow branch breaks his leg.

Hermione says “If you want to kill Harry, you’ll have to kill us too.”

Ron says the line “If you want to kill Harry, you’ll have to kill us too!”

Hermione says “I trusted you, and all this time you’ve been his friend.”

Harry says the line “I trusted you, and all this time you’ve been his friend.”

Harry saw Pettigrew’s name on the map.

Lupin saw Pettigrew’s name on the map after confiscating it, which led him to the Shrieking Shack. Harry never saw Pettigrew’s name.

Movie

Book

No such backstory is given. There are only hints that Sirius is Padfoot and Pettigrew is Wormtail.

The backstory of the Marauders, their  connection to the Shrieking Shack, and Whomping Willow is revealed.

Snape walks into the room at the Shrieking Shack.

Snape used the Invisibility Cloak to get into the Shrieking Shack.

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Book

Snape has a calm reaction.

Snape binds Lupin, threatens to suspend Hermione, and tells Harry he deserves to be killed by Sirius.

Harry is the only one to attack Snape.

The trio casts the disarming charm on him all at once.

Sirius wrestles Scabbers away from Ron.

Ron hands over Scabbers.

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Book

The werewolf is a gangly creature on two legs.

The werewolf is described to look more like a wolf.

Snape stands in front of Harry, Ron, and Hermione to protect them from Lupin.

Snape is still unconscious, therefore never stands between Lupin and the trio.

Harry goes after Sirius alone and they’re attacked by Dementors.

Harry and Hermione go after Sirius and all three are attacked by Dementors.

Pettigrew never attacks anyone when he flees.

Ron is stunned unconscious by Pettigrew.

Movie

Book

Ron watches Harry and Hermione time travel.

Ron is unconscious and never sees them time travel.

The time turner keeps them in the Hospital Wing.

The time turner teleports them to the entrance hall. 

Hermione throws a rock through Hagrid’s window and howls to get Lupin’s attention. She is with Harry when he casts the Patronus.

Hermione doesn’t throw a rock through Hagrid’s window or howl to distract Lupin. She is also not with Harry when he casts the Patronus.

Dumbledore tells Harry and Hermione that Sirius is locked in a cell at the top of the Dark Tower.

Sirius is locked in Professor Flitwick’s office.

Hermione uses Bombarda to break Sirius out.

Hermione uses Alohomora to free Sirius.

Movie

Book

Lupin states that rumor of his condition has spread and Harry expresses regret that Pettigrew escaped.

During Harry and Lupin’s final conversation, Lupin reveals Snape is the one who told others about his condition. Dumbledore joins them and Harry admits he feels bad for not letting Sirius and Lupin kill Pettigrew. They also discuss Trelawney's prophecy. 

This does not happen.

Ron receives an owl, named Pigwidgeon, as a gift from Sirius to replace Scabbers.

This isn’t in the movie.

Sirius signs Harry’s permission slip so he can visit Hogsmeade.

The movie ends with Harry getting the Firebolt and flying it.

The book ends with Harry going back to the Dursleys, where he tells Vernon about a godfather who escaped from prison.

Movie

Book

The movie begins with Harry having a dream of a man being murdered by Voldemort.

The book begins with the story of the murder of the Riddle family and the gardener.

Pettigrew is happy to see the gardener, who is killed before he can say a word. Barty Crouch Jr is present.

The gardener, who is caught by Voldemort, is invited into the room. Pettigrew cowers and Barty Crouch Jr is not present.

Movie

Book

Hermione convinces Harry to send Sirius an owl when he gets to Hogwarts.

Harry immediately tells Sirius about his scar hurting while he’s still at the Dursleys.

Movie

Book

Harry wakes up at the Burrow with the Weasleys before they set out for the Portkey,

Harry receives an invitation from the Weasleys to go with them to the Quidditch World cup. Harry is still at the Dursleys when the Weasley family enters their house through the fireplace.

Movie

Book

This does not happen in the movie.

While helping Harry pack his things and leave Privet Drive, Fred and George give Dudley a Ton-Tongue Toffee, which enlarges his tongue.

Movie

Book

Bill, Charlie, and Percy do not appear in this movie.

Bill, Charlie, and Percy join the family for the Quidditch World Cup.

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Book

Harry has no idea what a Portkey is or how it works.

Harry is told what a Portkey is before they reach it.

Movie

Book

At the campsite, many people are using magic or flying around on broomsticks.

At the campsite, magic is forbidden by the Ministry.

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Book

Harry, Ron, Hermione, and the rest of the Weasley family stand at the top of the stands.

The group gets to be in the Top Box with the Malfoy family, Fudge, and other important figures. They were invited by Ludo Bagman.

The movie skips the Quidditch match.

The entire Quidditch match is shown.

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Book

Harry is trampled by the crowd and wakes up when everyone is gone.

Harry escapes into the woods with everyone else, where they meet a house-elf named Winky.

Barty Crouch Jr is shown casting the Dark Mark.

No one is shown casting the Dark Mark, but Winky is caught with the wand and is blamed.

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After the incident, the trio leave for Hogwarts.

After the incident, they return to the Burrow.

This chapter is not included in the movies.

This chapter shows the aftermath of the Ministry dealing with the Dark Mark and Percy, who works at the Ministry.

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Book

There is no mention of Mad-Eye Moody until they arrive at Hogwarts.

Arthur mentions that Mad-Eye Moody was attacked.

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Book

The students from two other schools arrive during the Start of Term feast.

The students from the other school don’t arrive until Halloween.

The Beauxbatons is depicted as an all-girls school.

The Beauxbatons are made up of both boys and girls.

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Book

The Care of Magical Creatures and Divination lessons don’t appear.

Hagrid continues to teach Care of Magical Creatures and has lessons over Nifflers and Blast-Ended Skrewts. They also have a Divinations class.

Movie

Book

Hermione does not do this.

Hermione starts SPEW to advocate for better treatment for house elves.

Moody performs the three Unforgivable Curses on an arachnid-like creature.

Moody performs the Unforgivable Curse on three different spiders.

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Book

Moody doesn’t do this.

Moody uses the Imperius Curse on all the students as a form of training. Harry does well at resisting it.

Movie

Book

Fred and George put their name in the Goblet of Fire together. They are rapidly aged and start fighting with one another.

Fred, George, and their friend Lee all try to put their name in the Goblet of Fire. When they grow beards, they laugh about it. Dumbeldore is present when this happens and laughs with them.

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Book

The other champions don’t say much about Harry being with them.

The other champions voice their concerns about Harry being a champion.

Dumbledore races towards Harry, grabs his robes, and demands to know if he put his name in the Goblet of Fire aggressively. 

Dumbledore asks Harry if he put his name in the Goblet of Fire calmly.

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This doesn’t happen.

Ollivander appears to weigh the champion’s wands.

Rita Skeeter only mentions Harry and Hermione being in love after the first task.

Rita Skeeter pushes the narrative that Harry and Hermione are in love from the start.

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Book

These meetings happen on two different nights.

Harry struggles to choose between meeting with Sirius or Hagrid.

Hagrid only mentions that Ron visited Charlie.

Charlie Weasley is there and talks to Hagrid about the dragons while Harry watches from under the Invisibility Cloak.

No one follows them to see the dragons.

Igor Karkaroff follows Hagrid and Madame Maxine.

Harry meets with Sirius by the fireplace, where his face appears in it.

Harry meets with Sirius and Buckbeak in person in a nearby cave.

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Moody only suggests that Harry use his wand.

Moody suggests Harry use a Summoning Charm, and Harry practices with Hermione.

Harry tells Cedric about the first task while he is with friends in a courtyard.

Harry casts a spell to rip Cedric’s bag open in the corridor, separating him from his friends so they could talk alone.

Rita Skeeter takes a photo of Harry and Hermione hugging in the tent.

This doesn’t happen.

The dragon breaks free and chases Harry around Hogwarts.

The dragon never breaks free and Harry remains in the arena.

Movie

Book

This chapter is not included in the movie.

The trio go to the kitchen, where they meet other house-elves including Dobby and Winky. This chapter also includes other classes.

Movie

Book

McGonagall has a class to teach Gryffindor students how to dance.

McGonagall simply tells the students about the ball and to find a partner.

Harry asks Cho to the ball in the Owlery.

Harry asks Cho to the ball while she is with her friends.

This is never mentioned.

It is mentioned that Fleur is the granddaughter of a Veela, a species that seduces those attracted to women.

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Hermione wears a pink dress to the ball.

Hermione wears a blue dress to the ball.

Harry sees Snape and Karkaroff arguing later on.

Harry and Ron spy on a heated argument between Snape and Karkaroff after going outside.

There is no argument between Hagird and Madame Maxine. 

Harry and Ron overhear a small argument between Hagrid and Madame Maxine, where Hagrid reveals he is half-giant. Harry spots Rita in her animagus form as a beetle.

Cedric tells Harry about the egg on the bridge.

Cedric tells Harry about the egg at the ball.

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Book

This chapter is not included.

Rita publishes an article about Hagrid being a half-giant, causing him to isolate himself. Professor Grubbly-Plank replaces him as the Care of Magical Creatures teacher. The trio and Dumbledore visit Hagrid and try to convince him to return.

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Book

This doesn’t happen.

On his way back from the Prefects’ Bathroom, Harry drops the egg and it opens. The screeching summons Filch, Snape, and Moody. Snape suspects Harry is there, but Moody keeps him out of trouble.

This is left out of the movie.

It’s mentioned that Moody’s magical eye has the ability to see through the Invisibility Cloak.

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Book

Barty Crouch Snr is the judge the entire time and Percy is not present.

Barty Crouch Snr ends up getting sick and Percy Weasley replaces him as judge.

The map is not included in the film.

Harry sees Barty Crouch’s name on the map doing odd things, making him suspicious of Barty Crouch Snr.

Neville gives Harry the Gillyweed.

Dobby gives Harry the Gillyweed.

The stands are in the middle of the lake for the second task.

The stands are by the shore for the second task.

Harry dives into the lake and Neville thinks he died. Harry then leaps from the water with an excited shout.

The contestants walk into the lake.

Harry can talk to the merpeople underwater and frees Ron quickly. 

During the task, Harry can’t talk underwater, there is a statue of the merpeople hunting a squid, and he has a hard time freeing Ron.

Harry is attacked by Grindylows on his way up.

Harry is attacked by Grindylows on his way down.

Harry gets second place.

Harry is tied for first place.

Barty Crouch Snr talks to Harry after the match and they’re interrupted by Moody.

This doesn’t happen.

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Book

This chapter is not included in the movie.

The trio visit Sirius. He tells them about Barty Crouch Jr, who was a few cells away from him in Azkaban. He also mentions the Crouch family’s recent history.

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Harry finds Barty Crouch Snr’s body in the forest. 

Harry finds Barty Crouch Snr going mad and asking to speak with Dumbledore. Harry goes to Dumbledore, who follows him back to Crouch. They return to an unconscious Krum, who was attacked by Barty Crouch Snr.

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Fudge is in Dumbeldore’s office because they just discovered Crouch Snr’s body.

Harry overhears Fudge in Dumbledore’s office, talking about Crouch Snr’s madness. He believes Madame Maxine had something to do with it.

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Book

The Pensieve looks like a sink.

The Pensieve is described as a moveable basin.

Harry sees Karkaroff’s trial in the Pensieve.

Harry sees Karkaroff, Ludo Bagman, and four other dark wizards on trial, one of them being Crouch Jr when he was a teenager.

Karkaroff is in a cage during his trial.

Karkaroff is chained to a chair.

Harry overhears Snape and Karkaroff’s argument after this scene, therefore he doesn’t discuss it with Dumbledore.

Harry and Dumbledore discuss the argument that he overheard between Snape and Karkaroff.

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Harry does not see the Weasley family here. Bill isn’t introduced until a later movie, where he and Fleur are already together.

Harry sees Mr. and Mrs. Weasley before the third task. Fleur takes interest in Bill here.

The maze is in an unspecified location near the castle.

The Quidditch pitch is turned into a maze.

Harry only faces the maze closing and changing on him and a bewitched Krum.

Harry also faces a Sphinx, Blast-Ended Skrewts, and Boggart in the maze.

Harry sees Fleur getting taken by the maze and casts red sparks to help save her.

Harry never sees Fleur in the maze.

Krum being bewitched is not fully explained in the film.

It is explained later that fake Moody used the Imperius Curse on him.

Harry and Cedric run into each other. They race for the cup.

Harry and Cedric team up to fight a giant spider and go to the cup together.

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Cedric says “Who are you? What do you want?”

Cedric is killed by surprise and doesn’t get a last line.

Wormtail uses magic on the grave to pin Harry in place.

Wormtail uses rope to tie Harry to the grave.

Wormtail cuts off his hand without much of a reaction.

Wormtail writhes on the ground in pain after cutting off his hand.

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Book

A few Death Eaters with familiar last names show up and Voldemort lectures them.

More Death Eaters show up. Voldemort names each of them and discusses where he has been hiding and what his next plans are.

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Book

Harry and Voldemort’s spells are red and green. Harry’s parents, Cedric, and Frank appear. Everyone but Frank speak to Harry.

When Harry and Voldemort’s spells connect, the stream turns gold. Harry’s parents, Cedric, Frank, and Bertha Jorkins appear, each of them getting a chance to speak.

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Book

Only Cedric’s dad is there to mourn him.

Both of Cedric’s parents are there to mourn him but Moody takes Harry away before they come forward.

Real Moody has one line saying, “I’m sorry, Albus.”

Real Moody is unconscious when they find him.

After being given Veritaserum, Crouch Jr only reveals that he isn’t Moody.

After being given Veritaserum, Barty Crouch Jr tells them how he escaped Azkaban, what he did to his father, and how he got Harry through the trials.

Not mentioned in the movie.

The book also mentions that Barty Crouch Jr was thought dead the last few years after his father helped fake his death. He then kept him under the Imperius Curse to control him. Crouch Jr is later executed with the Dementor’s Kiss.

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This doesn’t happen.

Fudge argues against Dumbledore, McGonagall, and Harry in the Hospital Wing. He does not believe Cedric was killed by Voldemort.

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This doesn’t happen. Sirius never appears in person in this film.

Dumbledore reveals to Snape and Molly Weasley that Sirius is working for him. Sirius is there in person.

The movie never mentions what Harry does with his winnings.

Harry wins the money for the tournament. He tries to give it to Cedric’s parents, but they refuse it. He ends up giving it to Fred and George.

Rita Skeeter being an Animagus is never mentioned. 

On the trip back to King’s Cross, Hermione reveals that Rita Skeeter is an Animagus and she captured her in a jar.

This doesn’t happen.

The trio stupify Malfoy and his friends.

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Book

The movie begins with Harry at the park. Dudley and his friends approach him.

The book begins before Harry reaches the park. Dudley is alone.

The Dementors attack them in an underpass.

The Dementors attack them in an alley.

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Mrs. Figg tells Harry that Dumbledore asked her to keep an eye on him.

Mrs. Figg tells Harry that Mundungus Fletcher was supposed to be watching Harry that night.

Harry gets one howler stating that he has been expelled.

Harry gets multiple letters, including one from Kingsley Shacklebolt, where he tells Harry his expulsion has been suspended thanks to Dumbledore.

Petunia does not get any letters.

Petunia gets a letter from Dumbledore saying “Remember my last, Petunia.” This scares her.

Petunia does not show much knowledge of the Wizarding World.

Petunia knows about Azkaban and Dementors.

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The Order of the Phoenix comes for Harry that night.

Harry sends a letter to Hermione, Ron, and Sirius. The Order of the Phoenix comes for Harry three days later.

When Harry calls Moody “Professor”, it doesn’t seem to bother him.

When Harry refers to Moody as “Professor”, he isn’t happy about it since he was l