i didn't dress up, (i did wear a half zip blue pull over, that kinda looked like it they suits, i guess ) but, they were a few guys at my showing that did
this one guy was running around with most of his body wrapped in duck tape (well tried to anyway, i think he probably run out of tape half way, he had his legs covered, and his waste, and was wearing some type of hat that was also wrapped in tape) he was running back and farther, across front row, (before the movie started) with his arms out like he was fling, making whooshing noises, calling him self the sliver steve or something LOL
we also, for some reason had a batman, and a darth vader
it was pretty cool, though, cause, a local radio station, set up for a unknown local band, to play before the movie started, in the theater like up in front of the screen (just for some exposition, or whatever) they were passing out fliers to some concert, i guess, they were going to be playing at, they were pretty good