John Dies At The End is pretty good! I haven't read the book, but I really enjoyed the movie. Plus it turned me on to Don Coscarelli, who's a great director. Bubba Ho-Tep, which he also directed, is amazing.
The other day I watched V/H/S 2 and Maniac, both of which start out promising and then kind of circle the drain. V/H/S 2 is a horror anthology (and despite being a sequel you don't really need to have seen the first one) of found-footage-type stuff. One of the shorts, about a guy who goes on a bike ride and accidentally runs into zombies, is a lot of fun; one of them, about a doomsday cult (this keeps turning up in my viewing and I don't know why) being investigated by a bunch of journalists, starts out very strong and descends into utter stupidity; one of them is about a guy with a camera eye and is just plain stupid, and the last one in the bunch is called "Slumber Party Alien Abduction", which should tell you all you need to know about how shit it is.
Maniac has Elijah Wood being a crazy person, which he does surprisingly well, but I found myself getting bored halfway through. He's great in it, but the movie itself didn't really have anything I found particularly interesting or inventive.