I would like to have seen more plot twists and less attempt at humor. There were a few scenes where characters attempted the humorous bit to get the audience to laugh, but it wasn't really believable, and left me wondering "why did they do that?" I thought the 3D-IMAX movie experience was awesome. I thought the internal plot could have used some more development- it was a bit too predictable, but a great movie experience none-the-less. The action scenes had good tension. I'd see a sequel, but Cameron... dude, make the me wonder what's going to happen. Give me a plot twist.