58% Correct

The results were worse than I had predicted (Avatar for cinematography! Precious for best adapted screenplay!). Blue is for my predictions, red for what I got wrong:

Leading Actor

Jeff Bridges, Crazy Heart

Cinematography

Barry Ackroyd, The Hurt Locker  

Mauro Fiore, Avatar

Foreign Language Film

Ajami (Israel)

El Secreto de Sus Ojos (Argentina)

Sound Editing

Christopher Boyes and Gwendolyn Yates Whittle, Avatar    

Paul N.J. Ottosson, The Hurt Locker

Supporting Actor

Christoph Waltz, Inglourious Basterds

Costume Design

Colleen Atwood, Nine  

Sandy Powell, The Young Victoria

Makeup

Barney Burman, Mindy Hall & Joel Harlow, Star Trek

Sound Mixing

Paul N.J. Ottosson & Ray Beckett, The Hurt Locker

Leading Actress

Sandra Bullock, The Blind Side

Director

Kathryn Bigelow, The Hurt Locker

Original Score

Michael Giacchino, Up

Visual Effects

Joe Letteri, Stephen Rosenbaum, Richard Baneham & Andrew R. Jones, Avatar

Supporting Actress

Mo'Nique

Documentary Feature

Food, Inc. 

The Cove

Original Song

Ryan Bingham & T Bone Burnett, Crazy Heart

Adapted Screenplay

 Jason Reitman and Sheldon Turner, Up in the Air

Geoffrey Fletcher, Precious

Up

Music by Prudence

Nicolas Schmerkin, Logorama

Mark Boal, The Hurt Locker

Rick Carter, Robert Stromberg & Kim Sinclair, Avatar

Film Editing

Sally Menke, Inglourious Basterds

Bob Murawski & Chris Innis, The Hurt Locker

Live Action Short

Gregg Helvey, Kavi

Joachim Back & Tivi Magnusson, The New Tenants

 Best Picture

The Hurt Locker