We won't know until July, I am afraid. In the book, he does. However Snape's death scene has been altered to make it 'more dramatic' as many fans believed his death in the book was rather anticlimatic. It is not very clear whether Harry is present during the death, but I think to cut out the section between Harry and Snape would be a great shame, as it speaks a lot about Snape's feelings towards Harry, and Harry also has to obtain Snape's memories to see the full truth.
Voldemort killed Snape.
Snape dies in Harry Potter and the Deathly Hallows (book 7, the last) on page 658 and his last words, spoken to Harry, were "Look ... at ... me ..."
Severus Snape
Severus Snape is the headmaster of Hogwarts in Harry Potter and the Deathly Hallows.
Snape dies in the shrieking shack because Voldemort kills snape so that he becomes the rightful owner of the deathstick
Voldemort killed Snape.
Harry Potter and the Deathly Hallows Part 2.
Yes
I believe you mean Snape, as in Severus Snape. Yes, he was good. Harry finds it out after Snape's death in Deathly Hallows.
Yes. Alan Rickman reprised his role of Severus Snape in both part of Harry Potter and the Deathly Hallows.
Severus Snape. When he 'done a bunk' before the battle McGongall became the head.
Severus Snape was headmaster in book seven: Harry Potter and the Deathly Hallows.
Snape dies in Harry Potter and the Deathly Hallows (book 7, the last) on page 658 and his last words, spoken to Harry, were "Look ... at ... me ..."
Severus Snape
Yes
I seriously doubt it, because Snape's parents aren't in Deathly Hallows, not even in a flashback. Snape's parents appear only once in the series, when Harry breaks into Snape's mind in Order of the Phoenix and sees some of Snape's childhood memories. And that's only in the book, not the movie.
Not directly. Snape shows Harry that he was actually always helping him. He protects Harry, but still kind-of hates him.