Did Nina really die in the movie black swan?

Answer 1

Yes, she does because if you note the actual story of the Swan Queen, it's about a woman who turns into a swan, where a prince has fallen in love her. However, the woman falls for the wrong guy and kills herself. (Nina actually says something like this during the part of the film where she goes out clubbing). So, anyway, Nina falls for the wrong guy (her teacher, Thomas), who in the end calls her: "My little princess." Plus, with all the strain on her performing the role, she kills herself. Hence, why she says at the end: "I was perfect."

I'd recommend you maybe watch the film again and take note of where she goes face to face with who she thinks at first is Lily in her changing room, because that's one of most crucial parts related to the ending of the film. I hope this helped :)

Answer 2

It is possible, but it is more likely that her lack of nutrition was causing chemical imbalances in her brain which led to her mental instability.

This is not uncommon. Mental illnesses are more likely to occur in women whom are fasting to a dangerous extent, particularly those already at risk due to other factors such as genetics.