Other mistake: 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.raywest
Other mistake: In the final scene when Harry and Voldemort "connect" their wands, there is a close-up of Harry's face. Although the only light source seems to be the ball of fire between him and Voldemort, Harry's face is lit from his left.
Other mistake: After Voldemort disapparates while Snape is dying, Harry asks Hermione for a flask for Snape's tears. She pulls a vial out of her purse. However, she hadn't had a purse during the entire battle, then has one at this moment. Afterwards, she no longer has the purse in any other scene.Kimberly Anne McKnight