Sigourney Weaver, Michelle Rodriguez lend voices to Avatar

Ubisoft has announced that the same actors who lent their voices to James Cameron's film, Avatar, will reprise their roles in the game.

Sigourney Weaver plays Dr. Grace Augustine in the Xbox 360, PS3, Wii, and PC versions; Michelle Rodriguez voices helicopter pilot Trudy Chacon in the PC, PS3, and 360 versions which feature bad guy Col. Quaritch, played by Stephen Lang.

Giovanni Ribisi will only appear in the Wii version as Parker Selfridge.

A trailer for the game will be released next month on August 21 but there's no word on whether it will contain the actors' voices.

Thanks, Joystiq.