Saw this on Boing Boing yesterday:
Did you spot the Millennium Falcon in Revenge of the Sith? What about the kitchen sink or the only noted the Wilhelm scream? Or perhaps you were too busy watching Hayden Christensen that you didn’t notice George Lucas’ rare cameo? Here’s an article that lists many of the hidden tidbits in the last Star Wars film – Revenge of the Sith.
Star Wars: Episode III Easter Egg Hunt