This will be obvious to comic book fans, but most regular movie goers probably don't realize how many comic books come out that aren't about massively breasted women fighting each other in mid-air.

American Splendor is both a comic book adaptation and a biography of its prickly protagonist, the now-deceased Harvey Pekar. Despite it's non-superhero nature, the film pulls no punches regarding its comic book origins, often utilizing animation and framing techniques directly recalling that aesthetic. It's also hilarious.