There is only one reason to see this movie and that's to view the latest in 3D film production. The ONLY REASON to go is to see it in 3D, otherwise PASS. The rest of the movie is completely unsatisfying: too long, completely predictable and plagued by adolescent storytelling. Cameron should leave the writing to the writers and stick to the technical aspects. He's the best at the former and the worst at the latter. (Well, maybe not as terrible as George Lucas, but close. This movie made Jar-Jar Binks seem acceptable).