Especially IMAX, this is it. The effects are mind numbing. Actually, the effects are so awesome you forget they're effects. The 3-D has finally surpassed its former gimmick status, and the interweaving of live action and CGI is seamless. Great plus: there's actually a story and you really care about the characters! It's also wonderful to see Sigourney Weaver back in the future. Truly worth the price! I'll probably go see it again!