Continuity mistake: At the start of term feast, after Harry is sorted into Gryffindor, he sits down on the right side of the table next to Ron. When the feast appears, Harry is on the other side of the table, next to Hermione. (00:46:05)
Suggested correction: This is not a mistake. In the first shot, Harry was just sorted into Gryffindor and there were still quite a few students waiting to be sorted. By the time of the second shot, all the students were sorted and the feast started. Therefore, at least a few minutes have passed and Harry had plenty of time to switch sides of the table. Doesn't make much sense why he did that, I agree, but still plenty of time to do it.
I agree, but it's not about how there's plenty of time to do it. Like you said before, there's no reason for Harry to change position. Therefore, it counts as a mistake.
Character mistake: When Wood is telling Harry the rules of Quidditch he says that if you catch the Snitch the game is over, which is true. But then he also says that which ever seeker catches the snitch, their team wins, but that isn't true. Granted that the 150 extra points probably would give you the winning lead, but as JKR pointed out in the 4th book at the Quidditch World Cup, you can catch the Snitch but lose the match. And you'd think explaining the rules to a first-timer you would want to get it right. (01:05:40)
Suggested correction: The team whose "seeker" catches the "snitch" would win in over 90% of matches. At this point, in the film and the book, while Harry Potter has discovered that Quidditch is popular in the wizarding world, he knows nothing about the rules or how to play. Oliver Wood is giving Harry Potter his very first introduction to Quidditch. So maybe it is acceptable for Oliver Wood to give a general overview of how Quidditch works, rather than outline every nuance and detail of every game ever played.
Continuity mistake: At the end-of-the-year feast the Slytherin banner is green and gold, but their house colors are green and sliver, as evident by their robes. (02:11:00)
Continuity mistake: In the scene where Harry figures out that Hagrid got his dragon egg from "Snape"(Quirrell), at the begining of the scene, Harry's cloak is buttoned and still is when he, Hermione, and Ron are running to Hagrid's hut. When he reaches Hagrid's hut, it is unbuttoned even though he never unbuttoned it himself. (01:46:50)
Continuity mistake: When Dudley pops up after Hagrid gives him a pig's tail, his face and hands are clean, even though he was just eating Harry's birthday cake with his hands. (00:16:40)
Other mistake: In the scene where Professor Quirrell removes his headwrap to reveal the concealed Voldemort, Quirrell is obviously bald. However, if you carefully watch the scene with the troll, Quirell's sideburns are present after he shudders as the troll exhales, as they are in a couple of other shots. (01:10:43)
Suggested correction: The incident with the mountain troll took place on Halloween. The incident with Quirrell took place later in June. That is plenty of time for Quirrell to shave his head. Makes sense that he would as, I mean, I would rather shave my head if there was a guy on the back of it! Then I wouldn't have to worry about bumping his nose and him getting mad at me while using a comb. To be a mistake, we would need to see him with hair right before he is bald.
Revealing mistake: At the hut, when Hagrid bends Vernon's gun, if you look closely, you can see that there is a mark on the gun. When Hagrid bends the gun, the bend is exactly where the mark is. This is most visible on the DVD. (00:13:35)
Suggested correction: This is not a mark. It is either a scratch or a small piece of dirt on the shotgun. No mistake here.
Continuity mistake: In the scene where the pupils are waiting on the stairs before being sorted into their houses, Malfoy speaks to Harry and is clearly at the top of the stairs. However as the pupils go into the dining room, Malfoy is nowhere to be seen in at least the first 30 pupils. (00:41:15)
Other mistake: While Harry and his classmates are on their way up to Gryffindor Tower right after the Sorting, Neville reacts with astonishment to a portrait moving. However, we learn in later films that Neville was raised in a magical household (by his grandmother), so he should have been completely accustomed to seeing pictures move. (00:46:30)
Suggested correction: Not every magic household has moving pictures in the house.
No, but being raised in the magical world he will have come across moving portraits. A good example (tho not explained until book 5) is at St Mungo's. He visits his parents regularly. The hospital has portraits there that would move. Thus seeing the one move at Hogwarts shouldn't have startled him.
I am now doubting it's Neville who is saying it. Can't be sure it's his voice. It can also be he is mentioning they are portraits, not photographs that are moving. Maybe moving paintings are rarer.
Continuity mistake: When Harry, Ron and Hermione go to the third floor corridor for the first time, they all run into the corridor with Fluffy in and close the door. In the next shot, Ron walks through the door again and closes it again. (00:59:40)
Continuity mistake: When the letters start flying through the letterbox they are coming in with the address facing down and the red seal facing up. When Vernon says they are going away, the letters are now addressed side up and red seal down. (00:12:15)
