While the plot seems to be a combination of film themes you've seem before (a little Matrix Trilogy here, Dances with Wolves there, etc...) you will be so caught up in the visual appeal of it, all thoughts of "I've seen this somewhere before" will be forgiven. The cgi characters are even more realistic that The Lord of The Rings Golem and the action sequences are mind blowing. A must see in 3-D IMAX.