ruthless corp run by whitey shows up and sticks it to the noble savages. Ex-soldier falls in love with the one hot female savage and decides to go native himself and fight the evil corp/whitey.
Sounds like a third of the story from every post-PS1 Final Fantasy I've played.
However, James Cameron get's a pass from me.
Except for true originality (but then what is "original" anymore?), there doesn't seem like much Cameron can't
do with a movie. I've enjoyed pretty much everything he's put out (even Titanic, even if my favorite part was watching the boat sink...heh).