Black Swan 2010
A ballet dancer wins the lead in "Swan Lake" and is perfect for the role of the delicate White Swan—Princess Odette—but slowly loses her mind as she becomes more and more like Odile, the Black Swan.
Spoilers for Black Swan
Submitted by: megamuh
Nina has split personality disorder and is made to play both white and black swan in Swan Lake. Nina struggles, then does drugs, and then stabs herself, but she gave a great performance!