Continuity mistake: The pillow behind Griphook constantly moves between shots while the Trio is talking to him at Shell Cottage.
Continuity mistake: During the epilogue, Hermione hugs her daughter Rose. In the first shot, Rose's left hand rests on her mother's back just below the shoulder. Cut to the following shot and the same hand is on Hermione's arm instead. (01:56:00)
Continuity mistake: After arriving in Hogsmeade, when Harry is talking to Aberforth Dumbledore, the table by the window has two chairs on one side of the table. A few minutes later, there's only one chair on that side, and the other chair is now at the end where there was previously none at all. (00:28:00)
Answer: It's a little complicated. Voldemort actually died by his own hand, though unintentionally. Voldemort believed he commanded the Elder Wand and cast the Avada Kedavra curse at Harry with it. However, Harry was actually the Elder Wand's master. Because wands are somewhat sentient, the Elder Wand recognized Harry as his master, so the killing curse rebounded off him, and went back to Voldemort, striking him dead. All of Voldemort's Horcruxes had been destroyed, so he was no longer protected by them. At the same time, Harry cast the Expelliarmus charm, causing the Elder Wand to be ejected from Voldemort's hand into his.
raywest ★