Black Swan is Hollyood psychological thriller movie with horror elements also.Natalia Portman is playing the lead role in this movie along with Mila Kunis as supporting Actor.The movie is based on Tchaikovsky’s Swan Lake. Natalia Portman is playing the role of Nina who is an A ballet dancer.Day or Night , every time she thinks about her profession.She is offered the role to play the role of White Swan but as things go she starts loosing her mind and becomes more like a Black Swan due to the insecurities she feel from her co-artist named Lily played by Mila Kunis.