Forbidden Planet has a really nice selection of comic books, art books, movie toys and merchandise, action figures, t-shirts and more. The fleet of cute nerds behind the counters know their stuff and can help you find what you're looking for. While I was in art school, I used to go several times a month and stock up on the old cheap comics that they sell for a quarter in the back, for use in my various homework projects. FP is a lot of fun, and everyone is welcome, from the nerd on a mission to the casual browser. Great location in Union Square makes it a perfect place to wander in and out of while waiting for a movie or dinner reservations.