The guys at io9 have put together a list of comic book costumes that have actually translated well to the big screen. The list includes the likes of Iron Man, Hellboy and the Joker but leaves out obvious ones like TMNT, Sin City, 300 and X-Men. Generally speaking though, good movies tend to have good costumesâ€”i.e. Superman the Movie vs Superman Returns. It’s kind of a prerequisite. Check out io9 for the complete list.