The stars of 'Avatar' hit the blue carpet on Wednesday at the film's Hollywood premiere, but as always, celebs not actually IN the flick were out in full force to pose for cameras. The British press is calling out Leona Lewis -- who wrote the movie's theme song -- for her stunningly bejeweled ensemble, and we couldn't help but note the presence of 'The Hills' star Audrina Patridge, in a fitting blue-green pants suit.

Cast members were there too, including Sigourney Weaver, Michelle Rodriguez and the up-and-comer Zoe Saldana. Check out more picks from star-studded event: