I am probably one of the last people on the planet to see The Dark Knight, so mentioning the film's crossdressing scene is probably old news to most people. But being a completist, I feel it is my duty to mention it anyway, so here goes.
I watched The Dark Knight Saturday night. It was very good, but it was so long that during the last hour or so, I was looking forward to its end.
Anyway, the crossdressing scenes occur sort of near the end of the film when The Joker, played by Heath Ledger, disguises himself as a nurse. Nice wig, classic white nurse uniform, but lousy femme makeup, so not very passable.
This all dredges up my memory of an old Batman story that I read in a Batman Annual (maybe an "80-page Giant," maybe not) back in the early 1960s. I do not remember much of the story except that one of the bad guys is a professional femulator. He only appears in two or three panels of the story, but he definitely passed and his ability to do so was etched in my young femulator mind forever.