Official site and trailer for James Cameron's movie Avatar, starring Sam Worthington, Zoe Saldana, and Sigourney Weaver.
Avatar - Wikipedia
Overview of the movie Avatar, James Cameron's sci-fi adventure, includes details about the cast, development, and toy line.
Avatar - IMDb
Cast/character credits for James Cameron's 2009 movie Avatar, starring Sam Worthington, Zoe Saldana, Sigourney Weaver, Michelle Rodriguez, and Giovanni Ribisi.