Natalie Portman won Best Actress for her portrayal as a ballet dancer in "Black Swan." The early front-runner to the Oscars -- "The Social Network" managed to win only two Oscars for Best Original Score and Best Adapted Screenplay (Aaron Sorkin).
Melissa Leo and Christian Bale both won Best Supporting Actress and Actor awards for their roles in the gritty drama "The Fighter."
The complete winner list is as follows:
"The King's Speech," Iain Canning, Emile Sherman and Gareth Unwin, Producers
Achievement in directing
"The King's Speech," Tom Hooper
Actor in a Leading Role
Colin Firth in "The King's Speech"
Actor in a Supporting Role
Christian Bale in "The Fighter"
Actress in a Leading Role
Natalie Portman in "Black Swan"
Actress in a Supporting Role
Melissa Leo in "The Fighter"
Animated Feature Film
"How to Train Your Dragon" Chris Sanders and Dean DeBlois
"The Illusionist" Sylvain Chomet
"Toy Story 3" Lee Unkrich
Achievement in Art Direction
"Alice in Wonderland"
Achievement in Cinematography
"Inception," Wally Pfister
"Alice in Wonderland," Colleen Atwood
"Inside Job," Charles Ferguson and Audrey Marrs
Documentary (Short Subject)
"Strangers No More"
"The Social Network"
Foreign Language Film
"In a Better World," Denmark
"The Wolfman," Rick Baker and Dave Elsey
Music (Original Score)
"The Social Network," Trent Reznor and Atticus Ross
Music (Original Song)
"We Belong Together" from "Toy Story 3," Music and Lyric by Randy Newman
Short Film (Animated)
"The Lost Thing," Shaun Tan and Andrew Ruhemann
Short Film (Live Action)
"God of Love," Luke Matheny
"Inception," Richard King
"Inception," Lora Hirschberg, Gary A. Rizzo and Ed Novick
"Inception," Paul Franklin, Chris Corbould, Andrew Lockley and Peter Bebb
Writing (Adapted Screenplay)
"The Social Network," Screenplay by Aaron Sorkin
Writing (Original Screenplay)
"The King's Speech," Screenplay by David Seidler