When Mr Weasley asks Harry if he can have a word, there is a red scarf on his shoulder, when they're talking, there is no scarf. [Arthur Weasley wears the scarf around his neck the entire time. As Arthur leads Harry away from people for more privacy when they speak, they walk in and out of shadow, and both Harry's red shirt and Arthur's red scarf darken as they stand in the shadows.]

When Harry and Hermione are going back in time and face the 'Lupin' werewolf, Buckbeak shoos Lupin and Harry says 'Poor Prof. Lupin's having a really tough night.' In that shot, Harry and Hermione swap positions. [No, they don't. Harry pulls Hermione around to his front, and they stay that way throughout his comment about Professor Lupin.]

When Harry is trying to catch the monster book of monsters from under his bed, he drops his shoe and the book jumps at it. You can see the book bite the edge of Harry' shoe, but when the shot is shown where Harry jumps on the book, the book has nearly the whole shoe in its mouth. [When Harry drops the shoe the Monster Book goes after the shoe hungrily and takes the heel into its mouth. In the next shot we see Harry, NOT the shoe, as he jumps off the bed. Then, it's in the 3rd shot that we actually see half the shoe in the book's mouth. There's time between the 1st and 3rd shot, when the camera's on Harry, for the Monster Book to swallow more of the shoe.]

Before Hagrid's lesson, during the scene where Draco Malfoy and his friends are teasing Harry about the Dementors, Draco pulls his hood/hat onto his head, but it doesn't have a good grasp and starts to slip off; the front of his hair is visible. A split second later from a different camera, the hood is snug on his head and no hair can be seen. [Although the position of the hood changes slightly, Draco's hair is always visible. After the first shot of Draco, it cuts to a shot of Harry, then another shot of Draco, so there was enough time for the hood to change position. Either Draco adjusted it, or it could have slipped down on its own.]

Just before Mr Weasley has his little chat with Harry, Mark Williams looks directly into the camera two or three times. [He is not looking at the camera. His character, Arthur Weasley continuously looks around the room to make sure no one will overhear his conversation with Harry about Sirius Black.]

After Professor Lupin confiscated the Marauder's Map from Harry Potter, Harry told Lupin that he saw Peter Pettigrew's name on the map. Although both Lupin and Potter did have their own knowledge about Pettigrew, Lupin was his friend and Potter learned from overhearing the conversation between Professor McGonagall, Madame Rosmerta and Cornelius Fudge, there was no indication that they ever had any conversation about Peter Pettigrew. Lupin's reaction to Harry's revelation was rather odd because he looked worried instead of surprised that Potter already had some information about Pettigrew. Potter himself also seemed really familiar with the name rather than showing any indication of curiosity about Pettigrew. Such a profound discovery should have made him question Lupin about the nature of the finding rather than just walking away from his office. [First of all, Lupin and Harry needn't have had any conversations regarding Pettigrew, Lupin knows that Harry could easily have already found out about the infamous circumstances surrounding his parents' deaths. When Harry tells Lupin he saw Pettigrew's name on the map, Lupin's immediate reaction is not about how Harry knows the name Pettigrew, but rather the more important issue of Pettigrew's name actually being on the map, because the map doesn't lie. The fact that Harry chooses not to question Lupin about Pettigrew is a deliberate decision Harry makes when Lupin admonishes him. He feels guilty especially after his experience in the corridor when the map 'falsely' indicated that Pettigrew was passing him. There is no factual, or any other kind of mistake, regarding Harry's or Lupin's behavior.]

When Professor Snape caught Harry missing the curfew, Professor Lupin came to intervene and save Harry from being punished. Lupin also took a parchment, the Marauder's Map, before Snape could confiscate it and asked Harry to come to his office. In his office Lupin mentioned to Harry that the map was a weapon for Sirius Black but he never asked Harry what is hidden inside the parchment nor did Harry ever mention a word about the map. Obviously Lupin should have had no knowledge about the Marauder's Map if he have never even heard anything about it. [Lupin was one of the people who MADE the Marauder's Map (he was the "Mooney" in "Mooney, Wormtail, Padfoot and Prongs).]

When Harry is riding Buckbeak for the first time over the lake, the sun is at their left but in the last shot when Buck turns right, the sun is now at their right. [After Buckbeak and Harry fly out of the paddock and towards the castle, there's an overhead wide shot of the water below and it's clear Buckbeak does not fly in a straight line, he's following the path of the water with numerous twists and turns. The sun's position changes with Harry's "Woo hoo!" in the first shot, followed by more loud screams in the 2nd shot, and then in the last shot, with another "Woo hoo!" From shot to shot, these are not one long continuous scream and since Buckbeak is turning with the path of the lake, it is obvious that their direction is changing as they fly over the water. Each of the consecutive shots as they fly is not their entire flight, as is even apparent in the next two shots when Buckbeak is back near the paddock already.]

When Harry firsts receives the Marauder's Map and says "Is that...?" and one of the twins answers "Dumbledore in his study...", the shot shows us Dumbledore's footsteps. But the name above the steps say 'Albvs Dumbledore' rather than 'Albus Dumbledore' or 'Albvs Dvmbledore'. [The name on the floating ribbon, near the stairs, is spelled correctly as ALBVS DVMBLEDORE.]

In Dursleys' house, Harry yells at Aunt Marge and she breaks her glass, but the base is still intact after that. When Harry goes to wipe the table, it has disappeared. [When the crystal brandy goblet actually breaks, while in Marge's grasp, there is no clear view of the supposed intact base, in the shot facing Marge and the next one facing Vernon, nor is there a view of where it lands. In the next two close-ups of Marge, as she tells Petunia not to worry and then snaps her fingers at Harry to clean it up, the table is visible and the base is not visible at all in the shots. The only glass base on the table, in front of Marge, is one that is intact on the tall crystal goblet.]

When Ron and Hermione finds Harry crying on a rock, you can see that Harry's footprints stops right in front of the rock. The only way that he could have achieved that is by jumping and turning in the air before sitting, without touching the snow. [Not necessarily. He could have stopped in front of the rock, climbed up, then turned around when he was on the rock. Perfectly possible.]

In the scene where Harry says goodbye to Remus Lupin they are standing on opposite sides of the desk. There are huge piles of books to the right side (viewer's right) of the desk. When the shot jumps closer the books should obscure part of the view but in fact the books are on the floor behind the desk and the desk is nearly empty. [The pile of books behind the desk was there from the beginning. Later when Potter watch Lupin leave we can see the books are still on the desk behind him.]

When Harry is watching outside the window on the Hogwart Express, you can see the reflection of his face and the camera on the window. [The reflection we see is definitely not of a camera. It's the reflection of the doorway and the long shiny silver door handle.]

In the Leaky Cauldron, when Harry meets the Minister of Magic, the bald man offers him food in a bowl, which Harry rejects, then he lays it down on the table. The bowls switch positions from shot to shot. [Tom the Innkeeper offers Harry a bowl of walnuts and he declines. Tom bows and then takes the bowl of nuts with him as he stands at the wall. Now the only bowl left on the table is the empty one for the pea soup.]

Right after Hermione gets angry and punches Malfoy, Malfoy and his goons run off. As he is running away, Draco Malfoy calls out to his fellow Slytherins "Not a word to anyone." When Harry and Hermione relive the scene again, Draco runs off saying "Not a word to anyone, understood?." [No. Malfoy says, "Not a word to anyone, understood?" in both shots.]

In the scene when the Knight Bus turns and drives on the bridge, you can see the London Eye in the background. This part of the movie was set in 1993, but the London Eye was built in 1999. [When did they ever mention that the year was 1993? The films don't mention it, as in the books.]

When Harry is wearing the invisibility cloak, he has to open the doors to the candy store and the bar when going in and out. However, when he is outside walking with Hermoine and Ron and near the shrieking shack throwing snowballs at Malfoy, none of the falling snow is accumulating on his head. If he can't walk through things when he is invisible, shouldn't the snow be landing on his head giving away the fact that he is there? [The snow is not accumulating on him because he is moving. Any flakes that do stick would quickly melt into the cloak, but in the meantime would just look to be blowing around oddly. If it were snowing very hard (or he was moving very fast), you might be able to notice the snow "avoiding" his space or swirling around him, but unless you were specifically looking for someone invisible you probably would not notice it or not realize what it was.]

When Harry sneaks into town and comes out of the candy shop, all you see is a floating lollipop going through the crowd, while the rest of him is covered by the Invisibility Cloak. The entire stick is visible. If Harry is holding the stick through the cloak, then part of the stick should be missing/hidden too. [It would only disappear if it were UNDER the cloak. The entire lollypop should be visible, that is how the cloak works. Harry grabs the lollypop with his still cloaked hand so anything outside the cloak does not disappear that is why, for example, you see people, objects through him and see the rock he sits on, etc.]

When Harry and Hermione go back in time and are crouching outside Hagrid's hut, before Hermione throws the stone, you hear the other Hermione in the hut saying 'I meant me'. In the original scene, filmed in the hut, Hermione says this and then the stone immediately comes through the window and smashes the pot. However when they go back in time, there is at least a 6 second pause from when the other Hermione says it and the stone smashes the pot. [The event is is postponed, because it takes a while for Hermione to realise she has to throw the stone. Like at the lake; Harry expected his father to cast the Patronus, but realised it was him earlier, so the event was postponed.]

When Harry, Hermione and Ron enter the compartment on the Hogwart Express, there's only liquid in the the bottom of the bottle next to Prof. Lupin, but when the Dementors arrives, the level is higher. [The liquid in the bottle stays the same throughout the whole scene. However, the base of the window can be seen through the bottle near the bottom and it looks like this is the water level.]