As happy as I was to see Indy on another adventure, the "crystal skull" storyline was too other wordly for me. I tried to avoid watching previews because I've found them to give away too much of the story in years past. I might as well have watched them as some of the plot involving the last 20 years was pretty predictable. The movie does subtly reference some events in the older films, but in an intelligent way. Stay ouf refrigerators. They are death traps.