Slumdog Millionaire, Heath Ledger Lead SAG Award Winners

The Screen Actor's Guild honored the best and the brightest from 2008 last night.

Often a pre-cursor to which actors and movies take home the big prizes at next month's Academy Awards, here's a rundown of winners in major categories:

Outstanding Performance by a Cast in a Motion Picture

‘Doubt’
‘Frost/Nixon’
‘Milk’
‘Slumdog Millionaire’ — WINNER
‘The Curious Case of Benjamin Button’

Outstanding Performance by a Male Actor in a Leading Role

Richard Jenkins - ‘The Visitor’
Frank Langella - ‘Frost/Nixon’
Sean Penn - ‘Milk’ — WINNER
Brad Pitt - ‘The Curious Case of Benjamin Button’
Mickey Rourke - ‘The Wrestler'

Outstanding Performance by a Female Actor in a Leading Role

Anne Hathaway - ‘Rachel Getting Married’
Angelina Jolie - ‘Changeling’
Melissa Leo - ‘Frozen River’
Meryl Streep - ‘Doubt’ — WINNER
Kate Winslet - ‘Revolutionary Road’

Outstanding Performance by a Male Actor in a Supporting Role

Josh Brolin - ‘Milk’
Robert Downey, Jr. - ‘Tropic Thunder’
Philip Seymour Hoffman - ‘Doubt’
Heath Ledger - ‘The Dark Knight’ — WINNER
Dev Patel - ‘Slumdog Millionaire’

Outstanding Performance by a Female Actor in a Supporting Role

Amy Adams - ‘Doubt’
Penelope Cruz - ‘Vicky Cristina Barcelona’
Viola Davis - ‘Doubt’
Taraji P. Henson - ‘The Curious Case of Benjamin Button’
Kate Winslet - ‘The Reader’ — WINNER