This movie has definitely advanced the art of moviemaking, but the story is childish and has been done many times. I saw it in an IMAX theater and was blown away by the sound, music, CGI and the 3D. The 3D was not "gimmicky", meaning it wasn't used to throw things into the audience, but rather to present images naturally. Very effective. Cameron & Co.'s creativity with the image and production is unparalleled. The story though, keeps this from being a 5 star review. The screenplay is amateurish and has been seen in "Dancing With Wolves" and many others.