For those of you who live in a city where this has opened (hope it does well enough to go wider), I urge you all to check out AMERICAN SPLENDOR.
As a fan of Harvey Pekar's comics over the years, I have to say that I think they brought it to the screen perfectly. Paul Giamatti and Hope Davis are fantastic and, if there's any justice, they'll get Oscar nominations.
The filmmakers--documentarians to this point in their careers--take all kinds of chances mixing dramatic narrative, documentary, animation, and comic book art. It works brilliantly.
Funny, warm, and ultimately uplifting in a way perpetual crank Pekar would no doubt approve.