A must-see IMAX 3D experience! Everyone says to forget the plot and enjoy the visuals; I say enjoy the plot as well...lots of subtle events that you should take the time to contemplate and enjoy. The not-so-subtle politics and not-so-hidden meanings are unavoidable, but still it is an enjoyable experience. Don't know why Cameron insisted on having Sigourney Weaver be a chain smoker - it added nothing to the film - but adequate performances and great visuals make this a can't miss movie. DON'T wait for the DVD!