Yes.
The movie in which Harry Potter sees Voldemort in a mirror as himself is Harry Potter and the Order of the Phoenix. :)
Yes, he fought the spirit of Voldemort's younger self.
Voldemort or Dumbledore
No, Voldemort dies how he dies in the book.
He burns because Before Harry's mum died he gave Harry the sign of love which cause him to burn Quirell in the first book/movie.
ACTUALLY IT SAYS: "The one with the power to vanquish the dark lord approaches. And the dark lord will mark him as his equal, for the one will have powers that he does not. For neither shall live while the other survives." that it was that voldemort was not to kill harry in the first movie but he will have the chance to kill harry, in the 7th movie harry and voldemort dies, but comes back to live again because of a spell or his own powers the prophecy was "neither lives while the other survives "
The first part of the Deathly Hallows movie will end when Voldemort aqquires the Elder Wand from the late Albus Dumbledore.
Voldemort decided to kill the baby Harry with his family (Snape asked him to spare Lily, if she is willing to step aside and let Voldemort kill her baby... of course she did not do that.)
Harry Potter and the Half Blood Prince.
Harry doesn't understand what is happening to him, at first. Later in the movie he finds the profecy and finds out that he and Voldemort are connected. He also finds out that he is the chosen one and he is the only one that can stop Voldemort. Note: Actually, Voldemort doesn't invade Harry's mind (only once in the Ministry Battle), it is the other way around: Harry is peeking into Voldemort's mind (albeit unintentionally and uncontrollably).
Kinda. Voldemort uses the spell, but the part of the soul that was in Harry, that dies, not Harry. Then Harry's soul is fully his.
No, he is controled by Voldemort.