Continuity mistake: During the duel between Harry and Voldemort whilst they are on the Hogwarts staircase, there's a midshot of Voldemort casting a spell. His arm is at an extreme bend with his elbow close to the top of his head, and his forearm is above his head. The very next shot from a different angle, Voldemort's arm is straighter and his elbow is not bent, with his arm a considerable length away from his head.
poppingcorn
15th Jul 2011