I thought all the other reviewers were exaggerating, or hopping on the bandwagon. Words like "immersive" and "amazing," beautiful, groundbreaking, blah blah blah were all over the place. So I went with pretty low expectations - I mean, who would really expect any movie these days to be groundbreaking. Listen carefully - none of those reviews was exaggerated. I don't have the words to describe it, other than YOU'VE GOT TO SEE THIS MOVIE. Leave the little ones at home. I'd say 10+ might be OK, but it's properly rated PG-13 (unlike Transformers, which my 4-yr-old LOVES). Lots of scary stuff coming at you aggressively in this movie. Enjoy, and tell your friends. James Cameron has done it again.