"X" marks the movies I've seen.

Best picture
X - "Black Swan"
X - "The Fighter"
X - "Inception"
X - "The Kids Are All Right"
X - "The King's Speech"
X - "127 Hours"
X - "The Social Network"
X - "Toy Story 3"
X - "True Grit"
X - "Winter's Bone"

Actor
X - Javier Bardem, "Biutiful"
X - Jeff Bridges, "True Grit"
X - Jesse Eisenberg, "The Social Network"
X - Colin Firth, "The King's Speech"
X - James Franco, "127 Hours"

Actress
X - Annette Bening, The Kids Are All Right
X - Nicole Kidman, "Rabbit Hole"
X - Jennifer Lawrence, "Winter's Bone"
X - Natalie Portman, "Black Swan"
X - Michelle Williams, "Blue Valentine"

Supporting actor
X - Christian Bale, "The Fighter"
X - John Hawkes, "Winter's Bone"
X - Jeremy Renner, "The Town"
X - Mark Ruffalo, "The Kids Are All Right"
X - Geoffrey Rush, "The King's Speech"

Supporting actress
X - Amy Adams, "The Fighter"
X - Helena Bonham Carter, "The King's Speech"
X - Melissa Leo, "The Fighter"
X - Hailee Steinfeld, "True Grit"
X - Jacki Weaver, "Animal Kingdom"

Director
X - Darren Aronofsky, "Black Swan"
X - David O. Russell, "The Fighter"
X - Tom Hooper, "The King's Speech"
X - David Fincher, "The Social Network"
X - Joel Coen and Ethan Coen, "True Grit"

Animated feature
X - "How to Train Your Dragon"
X - "The Illusionist"
X - "Toy Story 3"

Adapted screenplay
X - "127 Hours"
X - "The Social Network"
X - "Toy Story 3"
X - "True Grit"
X - "Winter's Bone"

Original screenplay
X - "Another Year"
X - "The Fighter"
X - "Inception"
X - "The Kids Are All Right"
X - "The King's Speech"

Foreign-language film
X - "Biutiful"
X - "Dogtooth"
   - "In a Better world"
   - "Incendies"
   - "Outside the Law"

Art direction
X - "Alice in Wonderland"
X - "Harry Potter and the Deathly Hallows: Part I"
X - "Inception"
X - "The King's Speech"
X - "True Grit"

Cinematography
X - "Black Swan"
X - "Inception"
X - "The King's Speech"
X - "The Social Network"
X - "True Grit"

Costume design
X - "Alice in Wonderland"
X - "I Am Love"
X - "The King's Speech"
   - "The Tempest"
X - "True Grit"

Documentary feature
X - "Exit Through the Gift Shop"
X - "Gasland"
X - "Inside Job"
X - "Restrepo"
   - "Waste Land"

Documentary short
X - "Killing in the Name"
X - "Poster Girl"
X - "Strangers No More"
X - "Sun Come Up"
X - "The Warriors of Qiugang"

Film editing
X - "Black Swan"
X - "The Fighter"
X - "The King's Speech"
X - "127 Hours"
X - "The Social Network"

Makeup
X - "Barney's Version"
X - "The Way Back"
X - "The Wolfman"

Sound mixing
X - "Inception"
X - "The King's Speech"
X - "Salt"
X - "The Social Network"
X - "True Grit"

Original score
X - "How to Train Your Dragon"
X - "Inception"
X - "The King's Speech"
X - "127 Hours"
X - "The Social Network"

Visual effects
X - "Alice in Wonderland"
X - "Harry Potter and the Deathly Hallows Part 1"
X - "Hereafter"
X - "Inception"
X - "Iron Man 2"

Original song
X - "Coming Home" from "Country Strong"
X - "I See the Light" from "Tangled"
X - "If I Rise" from "127 Hours"
X - "We Belong Together" from "Toy Story 3"

Sound editing
X - "Inception"
X - "Toy Story 3"
X - "Tron: Legacy"
X - "True Grit"
X - "Unstoppable"

Animated short film
X - "Day & Night"
X - "The Gruffalo"
X - "Let's Pollute"
X - "The Lost Thing"
X - "Madagascar, carnet de voyage" ("Madagascar, a Journey Diary")

Live action short film
X - "The Confession"
X - "The Crush"
X - "God of Love"
X - "Na Wewe"
X - "Wish 143"

--1/26: Whoops, realized I had seen "Day & Night".
--1/26: Added "Dogtooth" and "The Way Back"
--1/27: Added "Unstoppable" and "Gasland"
--1/29: Added "Blue Valentine" and "Hereafter"
--1/31: Added "Country Strong"
--2/3: Added "Animal Kingdom" and "The Wolfman"
--2/4: Added "Inside Job" and "I am Love"
--2/6: Added "Biutiful", "Rabbit Hole", and "Another Year"
--2/13: Added "The Illusionist", "Killing in the Name", "Poster Girl", "Strangers No More", "Sun Come Up", "The Warriors of Qiugang", "The Gruffalo", "Let's Pollute", "The Lost Thing", "Madagascar, carnet de voyage", "The Confession", "The Crush", "God of Love", "Na Wewe", "Wish 143"
--2/21: Added "Barney's Version"