Did Harry Actually Die?

Harry Potter does not die in the last movie. When Voldemort fires the Killing Curse at Harry, he simply kills the part of his (Voldemort's) soul that is in Harry as a Horcrux. So, a part of Harry dies, but just a part that connects Harry to Voldemort.

How did Harry die and come back to life?

The truth is Harry never actually died. His mother's protection lived on in Voldemort's blood after he incorporated it in the potion which brought him back to his physical body. This is why Harry got to heaven, but since he could choose to stay alive he managed to come back to the real world.

Does Harry die and come back to life?

Harry is able to "defeat" death another way: After fighting with Voldemort in the forest and being killed by the dark Wizard, Harry doesn't really die, but he is resurrected truly as himself, and not a shadow of who he was previously.