Sigourney Weaver Fights To Save An Alien World In Avatar

James Cameron's Avatar, coming in 2009, is about ecology and greed, says star Sigourney Weaver. She talked to Premiere magazine about what it's like to work with the world's most micro-managing director. And she explained why she's not a science fiction actor. Click through for some highlights, plus an update from… »2/21/08 1:40pm2/21/08 1:40pm