Actor-nominees for the 84th Academy Awards. Clockwise from top left: Meryl Streep, George Clooney, Viola Davis, Christopher Plummer, Glenn Close, Octavia Spencer, Rooney Mara and Brad Pitt.
CBS News has interviewed virtually all of this year's Academy Award nominees in the acting categories.
Click on the links below to catch up on them all, before tonight's Oscar ceremony.
Complete coverage: Oscars 2012
Printable ballot of Oscar nominees (pdf)
Glenn Close, "Albert Nobbs"
Glenn Close on "Albert Nobbs," elusive Oscar win
Glenn Close: Still having quite a run
Photos: Glenn Close
Viola Davis, "The Help
Viola Davis: I've found my own voice
Why Viola Davis won't go skydiving with George Clooney
Photos: Viola Davis
Rooney Mara, "The Girl With the Dragon Tattoo"
Rooney Mara on "Tattoo" Lisbeth Salander role
Video: Daniel Craig, Rooney Mara talk "The Girl with the Dragon Tattoo"
"Dragon Tattoo" star on rape, revenge scenes
Rooney Mara: Is "The Girl with the Dragon Tattoo" her vehicle for stardom?
Photos: Rooney Mara
Meryl Streep, "The Iron Lady"
The many faces of Meryl Streep
"60 Minutes": Mery; Streep's personal photos
Michelle Williams, "My Week With Marilyn"
Michelle Williams: Becoming Marilyn Monroe
Photos: Michelle Williams
Video: Michelle Williams on playing Marilyn Monroe
Demian Bichir, "A Better Lilfe
Video: "A Better Life" tells tale of undocumented worker
George Clooney, "The Descendants"
"Person to Person": George Clooney
Video: "Person to Person" - Clooney outtakes
Best Actor Oscar: Clooney, Pitt duke it out
Jean Dujardin, "The Artist"
"The Artist" star speaks of silent-film challenge
Brad Pitt, "Moneyball"
Brad Pitt on "Moneyball," kids and marriage
Why Brad Pitt was "obsessive" about "Moneyball"
"Moneyball": Thinking outside the batter's box
Best Supporting Actress
Berenice Bejo, "The Artist"
"The Artist": Silents are still golden
Photos: Berenice Bejo
Jessica Chastain, "The Help"
Video: Jessica Chastain's rising star
Photos: Jessica Chastain
Melissa McCarthy, "Bridesmaids"
Video: Melissa McCarthy: From "Bridesmaids" to Best Actress
Photos: Melissa McCarthy
Octavia Spencer, "The Help"
Octavia Spencer an overnight star after 15 years
Best Supporting Actor
Kenneth Branagh, "My Week With Marilyn"
Williams, Branagh talk Marilyn
Video: "My Week with Marilyn" cast members on legendary screen icon
Kenneth Branagh: From the Bard to Thor
Photos: Kenneth Branagh
Jonah Hill, "Moneyball"
Jonah Hill: I owe Charlie Rose for Oscar nod
Photos: Jonah Hill
Christopher Plummer, "Beginners"
Christopher Plummer: Busier than ever at 82
Photos: Christopher Plummer
Max Von Sydow, "Extremely Loud & Incredibly Close"
Max von Sydow: The actor who commands silence
Photos: Max Von Sydow
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