Melissa Leo

Melissa Leo poses backstage with the Oscar for best actress in a supporting role for "The Fighter" at the 83rd Academy Awards on Sunday, Feb. 27, 2011, in the Hollywood section of Los Angeles.

Melissa Leo holds the award for best female actor in a supporting role for her work on "The Fighter" at the 17th Annual Screen Actors Guild Awards on Sunday, Jan. 30, 2011, in Los Angeles.

Melissa Leo, an Oscar nominee for Actress in a Supporting Role for "The Fighter," arrives at the 30th Academy Awards Nominees Luncheon in Beverly Hills, Calif., Monday, Feb. 7, 2011. (AP Photo/Chris Pizzello)

Melissa Leo holds the award she won for Best Performance by an Actress in a Supporting Role in a Motion Picture for her role in "The Fighter," at the Golden Globe Awards Sunday, Jan. 16, 2011, in Beverly Hills, Calif.

Christian Bale, Melissa Leo and Mark Wahlberg are shown in a scene from "The Fighter." Leo earned a Best Supporting Actress Oscar nomination for her role as Alice Ward, the tough mother and manager of boxers Micky Ward and Dicky Eklund.

Actress Melissa Leo arrives at the 16th annual Critics' Choice Movie Awards at the Hollywood Palladium on Jan. 14, 2011, in Los Angeles.

Actress Melissa Leo arrives on the red carpet for the 2010 Oscars Governors Awards at the Hollywood and Highland Center in Hollywood, Calif., on Nov. 13, 2010.

PICTURES: Melissa Leo

Melissa Leo, nominated for an Oscar for best actress in a leading role for her work in "Frozen River," arrives for the 81st Academy Awards Sunday, Feb. 22, 2009, in the Hollywood section of Los Angeles.

Melissa Leo gained fame by playing Sgt. Kay Howard in the award-winning TV series "Homicide: Life on the Street" from 1993-1997. She was nominated for an Oscar in 2009 for her leading role in "Frozen River."

Actress Melissa Leo poses on the press line at the British Academy of Film and Television Arts Los Angeles annual awards season tea party at the Beverly Hills Hotel in Beverly Hills, Calif., on Jan. 10, 2009. Born in New York in 1960, she got her start in soap operas and was nominated for a Daytime Emmy in 1985 for her role in "All My Children."

Actor Josh Brolin, left, and actress Melissa Leo congratulate each other on their Oscar nominations,Thursday, Jan. 22, 2009, in Park City, Utah. Leo was nominated for an Academy Award for best actress for her role in "Frozen River," and Brolin was nominated for best supporting actor for his role in "Milk."

Actress Melissa Leo accepts the Spotlight Award for her performance in "Frozen River" at the 2008 National Board of Review of Motion Pictures awards gala on Wednesday, Jan. 14, 2009, in New York.

Oscar nominee Melissa Leo arrives at the Directors Guild of America Awards on Saturday, Jan. 31, 2009, in Los Angeles.

"Breakthrough Actor" honoree actress Melissa Leo, left, receives her award from presenter Debra Winger at the 18th Annual Gotham Independent Film Awards at Cipriani Wall Street on Tuesday, Dec. 2, 2008, in New York.

Tommy Lee Jones, director and star of the film "The Three Burials of Melquiades Estrada", left, poses with Melissa Leo, who also stars in the film, at the premiere Dec. 12, 2005, in New York. Leo has appeared in numerous TV shows including "Law & Order," "CSI," "Veronica Mars," "Cold Case," "Criminal Minds" and "The L Word."

Director-actor Tommy Lee Jones, left, and Melissa Leo, second from left, January Jones and writer Guillermo Arriaga pose for photographs at the showing of the movie "The Three Burials of Melquides Estrada" during the Toronto International Film Festival in Toronto, Sunday Sept. 11, 2005. Her film credits also include "Hide and Seek" and "21 Grams."