Indiana Jones in IMAX with John Williams' thundering, stirring score in surround sound is truly a sight to behold. It's the way those kind of movies are meant to be experienced. Highly recommended.
About the movie itself though, one thing I've always wondered. How on earth did Indy survive stowing away on the Nazi sub after escaping from the ship? I don't think he actually made it inside. He would have easily been captured as the sub was small and there would have been no room for him to hide. If the sub submerged for any substantial length of time, he would have been toast as there's obviously no way he would have been able to hold his breath that long. It doesn't hamper my enjoyment of the movie at all. It's just something I've always been curious about.