Hollywood's finest have gathered for the Academy Awards ceremony in Los Angeles, with Ben Affleck's Iran hostage drama Argo hoping to edge out Steven Spielberg's Lincoln for best film of the year.
Daniel Day Lewis won the best actor Oscar for his portrayal of Abraham Lincoln in Lincoln.
Jennifer Lawrence fell on the steps up to the stage to pick up her best acting Oscar for Silver Linings Playbook.
Ang Lee thanked the "movie god" when he edged out Spielberg to win the best director prize for The Life of Pi.
Ann Hathaway won the best supporting actress Oscar for her role in the musical Les Miserables, while Christoph Waltz picked up his second Oscar for his supporting role in Quentin Tarantino's Django Unchained. He won his first supporting acting prize in 2009 for his role as a Nazi in Tarantino's Inglourious Basterds.
Tarantino won the prize for best orginal screenplay for Djano Unchained.
Searching for Sugarman, the chronicle of a forgotten musician's rediscovery took home the Oscar for best documentary.
The French-language film Amour won the best foreign language Academy Award.
The award for best picture is among honors yet to be announced.
This year's show featured a film tribute to the so-called "Bond girls" who have appeared the five decades of the British super-spy James Bond films. Halle Berry, herself a "Bond girl" introduced the tribute. Afterwards, Shirley Bassey sang Goldfinger.
Lincoln was the favorite film with 12 nominations when the Hollywood awards season started two months ago. But Argo has won the best picture honor in almost all the other awards this season.
Ben Affleck was not nominated for best director, leaving Spielberg as the likely winner in that category.
Other films with several nominations are Ang Lee's shipwreck tale Life of Pi with 11, French revolutionary musical Les Miserables and romantic comedy Silver Linings Playbook with eight apiece, and Argo with seven.
Daniel Day Lewis is the front-runner in the best actor category for his role in Lincoln.
The Oscar winners are chosen by some 5,800 movie industry professionals who are members of the Academy of Motion Picture Arts and Sciences.
Seth MacFarlane is the host of this year's show.