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Harry Potter and the Deathly Hallows: Part 2 (2011) - 25 mistakes
Directed by David Yates, starring Alan Rickman, Daniel Radcliffe, David Thewlis, Emma Watson, Evanna Lynch, Helena Bonham Carter, Julie Walters, Maggie Smith, Michael Gambon, Ralph Fiennes, Rupert Grint, Tom Felton (add more)
As with all the other movies, differences between the book and the film are NOT mistakes.
Plot hole: Immediately after the confrontation between Harry/McGonagall and Snape in the Great Hall, Harry runs up to Ravenclaw tower against crowds of students running the opposite direction. However, all the students would have been in the Great Hall during that confrontation, and therefore would have been coming from the same direction as Harry.
Other: In both the books and the movies, Harry's Invisibility Cloak can always be seen until it is worn. In Diagon Alley, just before the Gringott's break-in, Ron pulls out the cloak to cover Harry and Griphook, but it turns invisible before he puts it on them. Ron merely mimes the motion of covering them.
Continuity: Just after Harry and Lord Voldemort have their altercation in the Forbidden Forest, Neville is seen walking into Hogwarts' courtyard entrance to pick up the sorting hat. In the first shot, there is a camera angle of him from the waist down from behind, and he is stepping over the rubble and having no trouble walking. In the very next shot, you get a full frontal view of him walking, and he is limping and can barely move.
Continuity: When Ron is about to cast a spell to destroy Nagini the view of him pointing his wand starts out from behind him and Hermione, before the shot changes we see Hermione turn her head towards Ron. When the shot changes to face them Hermione is looking at the snake then turns her head again.






