I saw this movie in IMAX. Btw this was my 1st IMAX movie. I have to say I am gonna be spoiled by going to regular movies for now on. And this movie in itself was the best movie I have seen. It not only stimulates ur mind but also gives u an emotional connection with the characters. U actually are wanting the aliens to win over the marines/humans. And the special effects are out of this world. I can see why James Cameron has taken years to release another movie after Titanic. the only place to go after that was up and up he did. The 3D was the best I have ever seen. It wasnt what I was expecting like the other 3D movies I have seen in the past. This was almost like virtual reality. I think that is where James Cameron is going next. WOW!!!!