I recently picked up the adaptation of one of the more underrated comedies of the 1970's. Steven Spielberg's 1941 bombed at the box office but it's surprisingly funny on repeated viewings. The comic adaptation, published by Heavy Metal in 1979, ratchets up the slapstick humor to a high degree. Featuring art by Steve Bissette and Rick Veitch with the script by Allan Asherman, the book is a fun read that follows the movie fairly well. The art is pretty cartoony on the inside but the front and back covers are pretty nice.
I found this gem fairly cheap and it's a great addition to my film adaptation collection. If you haven't seen the movie in a while, check it out. It's a hoot.