The IMAX experience is worth the extra couple of bucks. The visual experience alone makes this movie worth seeing. It is a typical James Cameron story, with characters painted in broad strokes. Sort of like a LIfetime Channel Movie in 3D. But it's the kind of story audiences eat up, and he knows what he is doing. Very innovative, like nothing you've ever seen. It will be interesting to see what Hollywood does with 3D this year; there are several more coming out, including Tim Burton and Pixar.