Disney/Pixar's "Wall-E" has cleaned up the 2008 Chicago Film Critics Association Awards by taking home four prizes, including the highest accolade, Best Picture of the year.

The lonely robot also scored Original Screenplay, Animated Feature, and Original Score.

Other big winners include the British film "Slumdog Millionaire," winning three prizes, including Best Director for Danny Boyle and Most Promising Performer for Dev Patel.

Heath Ledger, who died in January of accidental prescription drugs overdose, won the Supporting Actor category for his turn as the villain Joker in "The Dark Knight."

The awards were voted on by the 55 members of the association.

2008 CFCA Award Winners:

Best Picture: "Wall-E"

Best Director: Danny Boyle, "Slumdog Millionaire"

Best Actor: Mickey Rourke, "The Wrestler"

Best Actess: Anne Hathaway, "Rachel Getting Married"

Best Supporting Actor: Heath Ledger, "The Dark Knight"

Best Supporting Actress: Kate Winslet, "The Reader"

Best Original Screenplay: "Wall-E" (Andrew Stanton and Jim Reardon)

Best Adapted Screenplay: "Slumdog Millionaire" (Simon Beaufoy)

Best Foreign Language Film: "Let the Right One In"

Best Documentary: "Man on Wire"

Best Animated Feature: "Wall-E"

Best Cinematography: "The Dark Knight" (WallyPfister)

Best Original Score: "Wall-E" (Thomas Newman)

Most Promising Performer: Dev Patel, "Slumdog Millionaire"

Most Promising Director: Tomas Alfredson, "Let the Right One In"