** FILE ** In this Feb 27, 2011, file photo, Natalie Portman poses backstage with the Oscar for best performance by an actress in a leading role for "Black Swan" at the 83rd Academy Awards in the Hollywood section of Los Angeles. (AP Photo/Matt Sayles, File)
Associated Press Chris Hemsworth´s title character greets Natalie Portman in a scene from the superhero film "Thor."
From left, Natalie Portman, Danny McBride, James Franco and Zooey Deschanel star in director David Gordon Green's fantasy-comedy "Your Highness." (Associated Press)
Best supporting actor Christian Bale, left to right, best actress Natalie Portman, best supporting actress Melissa Leo and best actor Colin Firth pose with their awards at the 83rd Academy Awards on Sunday, Feb. 27, 2011, in the Hollywood section of Los Angeles. (AP Photo/Matt Sayles)
Actress Natalie Portman accepts the award for best actress in "The Black Swan" at the 83rd Academy Awards on Sunday, Feb. 27, 2011, in the Hollywood section of Los Angeles. (AP Photo/Chris Carlson)
Actress Natalie Portman arrives before the 83rd Academy Awards on Sunday, Feb. 27, 2011, in the Hollywood section of Los Angeles. (AP Photo/Matt Sayles)
In this film publicity image released by Fox Searchlight, Natalie Portman is shown in a scene from "Black Swan." The film was nominated for (AP Photo/Fox Searchlight, Niko Tavernise)
Natalie Portman accepts the award for best female actor in a leading role for "Black Swan" at the 17th Annual Screen Actors Guild Awards on Sunday, Jan. 30, 2011, in Los Angeles. (AP Photo/Mark J. Terrill)
Jeff Bridges, right, presents Natalie Portman with the award for best female actor in a leading role for "Black Swan" at the 17th Annual Screen Actors Guild Awards on Sunday, Jan. 30, 2011, in Los Angeles. (AP Photo/Mark J. Terrill)
