I knew it! Everyone told me it just happened to be a random snake, but I knew Harry set Nagini free! However, the snake in the first movie had a male voice; Nagini is a female snake. Voldemort said so himself in the 4 book.
I disagree with Because of the horcruxes, Voldemort was never dead. He only used the potion to give himself a proper body again. Like Dumbledore says, no spell or potion can bring back the dead.<< But these are all facts