Rooney Mara arrives before the 84th Academy Awards on Sunday, Feb. 26, 2012, in the Hollywood section of Los Angeles. (AP Photo/Matt Sayles)

Rooney Mara arrives before the 84th Academy Awards on Sunday, Feb. 26, 2012, in the Hollywood section of Los Angeles. (AP Photo/Matt Sayles)

Rooney Mara arrives before the 84th Academy Awards on Sunday, Feb. 26, 2012, in the Hollywood section of Los Angeles. (AP Photo/Chris Pizzello)

Rooney Mara arrives before the 84th Academy Awards on Sunday, Feb. 26, 2012, in the Hollywood section of Los Angeles. (AP Photo/Matt Sayles)

Pictured: Rooney Mara Mandatory Credit ?? Luiz Martinez/Broadimage The 84th Annual Academy Awards 2/26/12, Hollywood, California, United States of America Broadimage Newswire Los Angeles 1+ (310) 301-1027 New York 1+ (646) 827-9134 sales@broadimage.com http://www.broadimage.com

Pictured: Rooney Mara Mandatory Credit ?? Luiz Martinez/Broadimage The 84th Annual Academy Awards 2/26/12, Hollywood, California, United States of America Broadimage Newswire Los Angeles 1+ (310) 301-1027 New York 1+ (646) 827-9134 sales@broadimage.com http://www.broadimage.com

Actress Rooney Mara arrives on the red carpet for the 84th Annual Academy Awards on February 26, 2012 in Hollywood, California. AFP PHOTO Joe KLAMAR

Rooney Mara arrives before the 84th Academy Awards on Sunday, Feb. 26, 2012, in the Hollywood section of Los Angeles. (AP Photo/Chris Pizzello)

Rooney Mara arriving to the 84th Academy Awards at the Hollywood and Highland Center in Hollywood, California, 26.02.2012. Credit: MediaPunch/face to face - Germany, Austria, Switzerland, Romania, Hungary, Czech Republic, Poland and USA rights only - fot. Face to Face/Reporter

26 February 2012 - Hollywood, California - Rooney Mara. 84th Annual Academy Awards held at the Hollywood & Highland Center. CAP/ADM ??AdMedia/Capital Pictures

Rooney Mara arriving for the 84th Academy Awards at the Kodak Theatre, Los Angeles.

Rooney Mara arriving for the 84th Academy Awards at the Kodak Theatre, Los Angeles.