Harry Potter and the Prisoner of Azkaban

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Revealing mistake: Just after Harry attacks Snape at the Shrieking Shack, he insists on knowing about Peter Pettigrew. In the next shot, as Lupin says, "He was at school with us. We thought he was our friend," there are wedges under the wheels of the piano, however, in the following shots they're gone. (01:34:10)

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Revealing mistake: While Hermione and Ron watch, cloaked Harry starts up with Malfoy and his two friends as they all stand in the snow. Most noticeable in the wide shot, when Harry spins the Slytherin boy, although the boy's feet visibly disturb the snow, Harry's feet do not make a mark - no footprints whatsoever. (01:02:30)

Super Grover Premium member

Revealing mistake: Right at the start when Harry is on his bed and making a light under his sheet, you can see that he is actually on something like a light panel in order for this effect to happen. For one thing, when he moves around on it, it doesn't bend like a mattress does. Also, about halfway down the bed you can just see where the sheet ends and this panel begins. (00:00:50)

David Mercier

Revealing mistake: After Harry's first ride on Buckbeak during Hagrid's class, before Buckbeak cuts Malfoy's arm with his talon, when Malfoy holds his arm over his face, the pre-cut and ripped sleeve is visible in this close-up. (00:37:55)

Super Grover Premium member
Harry Potter and the Prisoner of Azkaban mistake picture

Revealing mistake: When Ron and Hermione are arguing with Malfoy near the Shrieking Shack, Malfoy visibly flinches before he is hit by the first snowball. He's not looking in the right direction to see it coming. (01:02:15)

Revealing mistake: When Harry and Hermione have gone back in time and they are running across the courtyard beneath the clock tower, you can tell this shot is using CGI because they seem to be running faster and further than the number of steps they are taking. (01:44:05)

Revealing mistake: When Fred and George pass on the Marauder's Map to Harry, we see the map start to reveal itself. As it does Harry starts to read "Messrs Mooney, Wormtail, Padfoot and Prongs." Harry reads the word Messrs before it even appears on the page.

Scrappy

Revealing mistake: When Harry first opens the Monster Book of Monsters, when looking closely, you can see the hollow part of the book that spits out the paper. Easiest to see when Harry is looking under the bed. (00:15:40)

Harry Potter and the Prisoner of Azkaban mistake picture

Revealing mistake: In the scene in which Harry, under the guise of the Invisibility Cloak, is dragged by the Weasley twins into the castle by his arms, it's obvious that the twins are miming a person in between them. There is one point when they round the corner right before throwing him onto the stairs, the twins are pretty much side by side, there is absolutely no room between them for a person at that point. They then widen the space again right after they round the corner. (00:56:55)

Harry Potter and the Prisoner of Azkaban mistake picture

Revealing mistake: When Hermione fakes reading the crystal ball, Trelawney insults her and Hermione knocks the crystal ball off the table. As the crystal ball leaves its stand it turns over and the tube used to create the smoke effect inside the ball is visible. Then as the ball rolls toward the stairs, there are no tubes visible. (01:19:55)

Revealing mistake: The first time the bus conductor shows Harry the newspaper with the picture of Sirius Black on the front, one of his fingers disappears "underneath" the moving picture for a split-second.

Chris Blower

Revealing mistake: When Neville opens his 'Monster Book of Monsters' he falls to the ground. Then he is lying on the ground and his book is attacking him again. We can see the pieces of pre-cut papers, that should be coming out of the book's mouth, actually come up from the ground, when Neville is holding the book above him. Obviously it's not real. (00:31:15)

Mortug Premium member

Revealing mistake: When the students are running towards the portrait of the hippos where the Fat Lady is hiding, watch the railing of the stairs. It shakes back and forth, showing it isn't really made of stone.

Revealing mistake: In the first overhead shot as the Dementors swoop down towards Sirius and Harry, Sirius lies in a particular position. During the Dementor attack his clothes move, then after Harry's Patronus repels the Dementors, Sirius breathes again and he now lies flat. After Harry collapses, in the last overhead shot, Sirius and his clothes lie in precisely the same position as the first overhead shot. His position differs later, in the repeat timeline as well. (01:42:50 - 01:45:20)

Super Grover Premium member

Revealing mistake: When they look at the newspaper about Sirius being sighted you can see the picture of Sirius on the newspaper doesn't move at all. (00:37:55)

Mortug Premium member

Revealing mistake: During the DADA class, as the Boggart balloon flies by, Lupin's eye contact with the balloon, as well as others', are not in sync as they follow the balloon with their eyes. (00:44:15)

Super Grover Premium member

Revealing mistake: In the Shrieking Shack, just after Scabbers becomes Pettigrew, when Sirius and Lupin pull him out of the hole, as the camera faces Pettigrew's back while they hold him, the blue tape on his 'missing' finger is visible for 2 frames. (It is necessary to go frame-by-frame.) (01:31:30)

Dr Wilson

Revealing mistake: When Malfoy and his friends are beaten up by an invisible Harry, Malfoy is dragged along by Harry. In the SECOND shot when Malfoy is dragged along (which is a close shot of Malfoys legs up in the air) look closely (perhaps slow-mo) in the bottom right hand side of the screen and you can see a bare hand move into view, quite close to the screen. This can't be Malfoys because he has gloves on. (01:00:15)

Hamster Premium member

Revealing mistake: During the Knight Bus scene, Harry smacks into the glass twice. Both times this happens, it's the same shot used twice.

Brad Premium member

Revealing mistake: Right before Ron pushes Harry towards Buckbeak, you can see him glance to the right several times, as if waiting for a cue. (00:32:40)

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More for Harry Potter and the Prisoner of Azkaban

Quotes

Sirius Black: Brilliant, Snape. Once again you've put your keen and penetrating mind to the task and as usual come to the wrong conclusion.

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Mistakes

When Malfoy and his friends bother Ron and Hermione, Harry shows up and messes with the three boys. He grabs hold of Malfoy's feet, lifts them in the air and pulls him across the snow. In the first close-up of the soles of Malfoy's boots, not a speck of snow is on them, though he was just walking in it. Then in the next close-up, his feet still in the air, the soles are now covered in snow.

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Trivia

In order to acquaint himself with his three lead actors, director Alfonso Cuaron had each of them write an essay about their characters, from a first-person point of view. Emma Watson, in true Hermione fashion, went a little overboard and wrote an 16-page essay, Daniel Radcliffe wrote a simple one page paper, and Rupert Grint never even turned his in, as he said that is what Ron would have done.

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