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Sigourney Weaver: 'Avatar’s' 3D 'Enhances the Experience' of the Movie Sigourney talks about James Cameron’s ability to write such strong characters for women. She also discusses his use of 3D technology to "enhance" the movie-going experience. Channel: Hulu Category: Fashion Video Length: 231 Date Found: May 14, 2011 Date Produced: December 15, 2009 View Count: 2