Comics! I recently finished Wanted (which made for a shitty movie, but a decent comic) and Watchmen (I despair I hadn't gotten around to it sooner).
Now I'm planning to read V for Vendetta, The Killing Joke, Batman: Year One, and some more. I've finally come around to comics as an art form, and I couldn't be happier!
If you're getting into comics, I can strongly recommend Transmetropolitan, The Invisibles, Saga, and the original Sandman books (there are a tonne of new ones now, and none have really clicked).
I'm also part way through Supergods by Grant Morrison. It's not a comic, but an autobiography-cum-history of the superhero genre. Worthwhile.
Now I'm planning to read V for Vendetta, The Killing Joke, Batman: Year One, and some more. I've finally come around to comics as an art form, and I couldn't be happier!