So Kees had brought it to my attention awhile ago that I may have missed one scream from Return of the Jedi. It appears in Special Edition version of the movie where the celebration scence is extended and includes the planets of Naboo, Tatooine and Coruscant. A Stormtrooper supposedly takes a dive in Chapter 49 of the DVD I have, I didn’t see it but I did hear the Wilhelm right before the fireworks start.
I have been looking at Spider-Man for a while now but haven’t found the scream. I have a good lead and will listen for it tonight.