New York Times review (spoiler free): http://movies.nytimes.com/2009/12/18/movies/18avatar.html
After a few minutes the novelty of people and objects hovering above the row in front of you wears off, and you tend not to notice the 3-D, which speaks to the subtlety of its use and potential future applications. Mr. Cameron might like to play with high-tech gadgets, but hes an old-fashioned filmmaker at heart, and he wants us to get as lost in his fictional paradise as Jake eventually does. On the face of it there might seem something absurd about a movie that asks you to thrill to a natural world made almost entirely out of zeroes and ones (and that feeds you an anticorporate line in a corporately financed entertainment). But one of the pleasures of the movies is that they transport us, as Neytiri does with Jake, into imaginary realms, into Eden and over the rainbow to Oz.
If the story of a paradise found and potentially lost feels resonant, its because Avatar is as much about our Earth as the universe that Mr. Cameron has invented. But the movies truer meaning is in the audacity of its filmmaking.
Few films return us to the lost world of our first cinematic experiences, to that magical moment when movies really were bigger than life (instead of iPhone size), if only because we were children. Movies rarely carry us away, few even try. They entertain and instruct and sometimes enlighten. Some attempt to overwhelm us, but their efforts are usually a matter of volume. Whats often missing is awe, something Mr. Cameron has, after an absence from Hollywood, returned to the screen with a vengeance. He hasnt changed cinema, but with blue people and pink blooms he has confirmed its wonder.