Natalie Portman

Natalie Portman attends the Nevada Women Vote 2012 Summit on Aug. 25, 2012, in Las Vegas.

Actress Natalie Portman, left, and Benjamin Millepied arrive at the 2013 Vanity Fair Oscars Viewing and After Party on Feb. 24, 2013, at the Sunset Plaza Hotel in West Hollywood, Calif.

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 on Sunday, Feb. 27, 2011, in the Hollywood section of Los Angeles.

Natalie Portman holds her award for Best Performance by an Actress in a Motion Picture Drama for her role in "Black Swan" at the 68th Annual Golden Globe Awards on Sunday, Jan. 16, 2011, in Beverly Hills, Calif.

Actress Natalie Portman arrives at the 2011 Palm Springs International Film Festival Awards Gala in Palm Springs, Calif. on Saturday, Jan. 8, 2011.

Actress Natalie Portman attends the Dior celebration of the reopening of its 57th Street boutique on Dec. 8, 2010, in New York.

Actress Natalie Portman arrives at the "Black Swan" closing night gala during AFI FEST 2010 on Nov. 11, 2010, in Hollywood, Calif.

Actress Natalie Portman and choreographer Benjamin Millepied attend the Opening Ceremony during the 67th Venice Film Festival on Sept. 1, 2010, in Venice, Italy.

On Dec. 27, 2010, Portman announced that she and Millepied, who she met during the production of "Black Swan," are engaged and expecting their first child in 2011.

Actress Natalie Portman attends the Opening Ceremony and "Black Swan" premiere during the 67th Venice Film Festival on Sept. 1, 2010, in Venice, Italy.

Natalie Portman attends the "Black Swan" photo call during the 67th Venice Film Festival on Sept. 1, 2010, in Venice, Italy.

Natalie Portman is shown in a scene from Darren Aronofsky's "Black Swan." Her role as Nina, a ballerina who loses her grip on reality, earned her an Oscar nomination for Best Actress.

Born Natalie Hershlag in Jerusalem, Portman grew up in Syosset, N.Y., and began her film career at age 13, playing an orphan who befriends a hitman in 1994's "The Professional."

Natalie Portman as Queen Amidala with Jar Jar Binks in scene from 1999's "Star Wars Episode I: The Phantom Menace." That same year, she enrolled in Harvard University to study psychology, while she worked on the other two "Star Wars" prequels. She completed her bachelor's degree in 2003.

PICTURES: Ivy League Stars

Actress Natalie Portman arrives at a press conference for her feature film "Thor" at Comic-Con 2010 in San Diego on Saturday, July 24, 2010.

Actress Natalie Portman arrives at the AFI Lifetime Achievement Awards honoring director Mike Nichols, presented by TV Land at Sony Pictures Studios on Thursday, June 10, 2010, in Culver City, Calif.

Actress Natalie Portman arrives at the Vanity Fair Oscar party on Sunday, March 7, 2010, in West Hollywood, Calif.

Actress Natalie Portman attends IFC's 19th Annual Gotham Independent Film Awards in New York, Monday, Nov. 30, 2009.

Actress Natalie Portman arrives for the 81st Academy Awards Sunday, Feb. 22, 2009, in Los Angeles.

Actress Natalie Portman attends the 2008 Glamour Women of the Year Awards at Carnegie Hall in New York on Monday, Nov. 10, 2008.

Actress and jury member Natalie Portman arrives for the premiere of the film "Che" at the 61st International Cannes Film Festival, on May 21, 2008, in Cannes, France.

Actress Natalie Portman poses for photographers as she arrives for the premiere of "Goya's Ghosts" in Prague, Czech Republic, on Wednesday, Jan. 31, 2007.

Natalie Portman arrives at the premiere of "V for Vendetta" on March 13, 2006, in New York. Portman famously shaved her head for her role in the film.

Actress Natalie Portman arrives at the 77th Annual Academy Awards at the Kodak Theater on Feb. 27, 2005, in Hollywood, Calif. She was nominated for Best Supporting Actress for her role in the film "Closer."

Natalie Portman holds award for best supporting actress for her work in "Closer" at the 62nd Golden Globe Awards on Jan. 16, 2005, in Beverly Hills, Calif.

Actress Natalie Portman is seen in a 1997 photo.