Avatar is a great movie to watch in 3D -- make sure you do, as the movie itself is just so-so. The plot is totally predictable and the whole ecology / Mother Nature theme is so lame (the trees communicate with each other through their roots -- yeah, right !!). But the 3D is awesome and pulls you right into the movie. So 4 stars due to the 3D -- only 3 stars if you go to see it in 2D.