Have you ever sat through a 2 hr 40min movie and hoped that there was still a lot of time left, because you didn't want it to end? Me neither-- until I saw Avatar. The world is beyond beautiful, the story so captivating, that you wish you could stay just a little longer. That's saying a lot, especially coming from a self-proclaimed disliker of action movies. I would go back and watch it again, and certainly recommend it in IMAX 3D.