James Cameron has given us a whole new sci-fi world with dazzling visuals in the "Avatar" franchise. Thanks to advanced technology, some of which Cameron and his crew had to invent for themselves, the ...

Sigourney Weaver is ready to reprise her role as Ellen Ripley once again. "We're just taking it one step at a time, it is very interesting," she said. "I hope we do it because I think it will be ...