The extra-dimensional-alien-fying-saucer aspect of the movie irritated some of my friends because "Indiana Jones is about the supernatural and relics, not aliens and UFOs" but I watched so much "In Search Of ..." when I was a kid, with the ancient astronauts and Erich Von Daniken and Chariots of the Gods and all that, that I didn't bat an eye at that part of it. The movie was far from perfect but I enjoyed it and had a good time, and I liked it more than Temple of Doom.
Having said that, I'm looking forward to seeing a fan edit of it just the same. ïViva variety!