Winner: Crash

Best Performance by an Actor in a Leading Role
Winner: Philip Seymour Hoffman

Best Performance by an Actress in a Leading Role
Winner: Reese Witherspoon

Best Performance by an Actor in a Supporting Role
Winner: George Clooney

Best Performance by an Actress in a Supporting Role
Winner: Rachel Weisz

Best Achievement in Directing
Winner: Ang Lee

Best Writing, Screenplay Written Directly for the Screen
Winner: Crash

Best Writing, Screenplay Based on Material Previously Produced or Published
Winner: Brokeback Mountain

Best Achievement in Cinematography
Winner: Memoirs of a Geisha

Best Achievement in Editing
Winner: Crash

Best Achievement in Art Direction
Winner: Memoirs of a Geisha

Best Achievement in Costume Design
Winner: Memoirs of a Geisha

Best Achievement in Music Written for Motion Pictures, Original Score
Winner: Brokeback Mountain

Best Achievement in Music Written for Motion Pictures, Original Song
Winner: Hustle & Flow

Best Achievement in Makeup
Winner: The Chronicles of Narnia: The Lion, the Witch and the Wardrobe

Best Achievement in Sound
Winner: King Kong

Best Achievement in Sound Editing
Winner: King Kong

Best Achievement in Visual Effects
Winner: King Kong

Best Animated Feature Film of the Year
Winner: Wallace & Gromit in The Curse of the Were-Rabbit

Best Foreign Language Film of the Year
Winner: Tsotsi

Best Documentary, Features
Winner: Marche de l'empereur, La

Best Documentary, Short Subjects
Winner: A Note of Triumph: The Golden Age of Norman Corwin

Best Short Film, Animated
Winner: The Moon and the Son

Best Short Film, Live Action
Winner: Six Shooter

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Out of the winners I have only seen Crash, Narnia and Kong.
I didn't really like Crash. Narnia was okay. Kong was awesome.