I'm generally a fan of Cameron movies, but this one was toooo long, too flashy (with poor pacing of the tension necessary).. it's like he was so fascinated with his new world visually that he was off on the dramatic pacing [which he did brilliantly in Terminator, Aliens and even Titantic].. He did it much better than I could (or I'd be doing it) but it still had me checking my watch at about two hours in..Admittedly I still don't buy the 3D hype and am not a teenager..I hope it does well at the box office, if only so Cameron can keep making movies..