Oscars 2012: The acting nominees

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)

Best Actress

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
Williams, Branagh talk Marilyn

Best Actor

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