WATCH: Just Released “Magic Mike” Movie Trailer
From what I've read this movie is loosely based on Channing Tatum's life and his experiences as a male stripper.
I think this might be the first American movie to focus on a male stripper. I know there have been movies like "Striptease" and "Flashdance" were of course about female strippers. "The Full Monty" is the only movie that I can think of that features male strippers, and nobody really wanted to see those guys take off their clothes.