In 2001 Berry won the Best Actress Oscar for her role in "Monsters Ball." Last year, Bridges and Bullock took home the Best Actor and Best Actress Oscars for their leading roles in "Crazy Heart" and "The Blind Side," respectively. Tomei has received three nominations and won an Oscar in 1992 for her supporting role in "My Cousin Vinny." Winfrey was nominated for an Oscar for her supporting role in "The Color Purple."
Nominations will be announced Jan. 25, 2011, at 5:30 AM PT at the Samuel Goldwyn Theater.
Other key dates for the Oscar calendar have been announced:
December 27, 2010: Nominations ballots mailed
January 14, 2011: Nominations polls close 5 PM PT
February 2, 2011: Final ballots mailed
February 7, 2011: Nominees Luncheon
February 12, 2011: Scientific and Technical Awards presentation
February 22, 2011: Final polls close 5 PM PT
For more information visit www.oscars.org.