Slumdog Millionaire cleaned up at Thursday night's Critics' Choice Awards in Los Angeles winning a five awards, including best picture, as well as the top director, writer, star and composer nods. Sean Penn earned the best actor honor and shared the acting-ensemble award for Milk. The Dark Knight garnered the best action movie award and best supporting actor for Heath Ledger. Anne Hathaway (Rachel Getting Married) and Meryl Streep (Doubt} tied for best actress while Kate Winslet was named best supporting actress for The Reader. Next, the awards circuit party train stops at the Golden Globes on Sunday. (Photo: WENN)