Most 3D big budget movies use it as a gimmick built for the OO's and AAH's of the things flying at you. Avatar isn't like that. this is how 3D was meant to be. instead of people reaching at you, you just get a sense of depth you don't get with 2D.
Beyond the format there is a deeply compelling array of characters that suck you into the highly original plotline. The sci-fi community hasn't seen this kind of development since District 9 and Star Wars before them. James Cameron has upheld his House of gold.
SEE THIS MOVIE IF IT'S THE LAST THING YOU DO!!!!!!!!!!!!!!!!!!!!!!!