We watched Zodiac on DVD, spread over a couple of days. It's a brilliantly crafted movie by David Fincher, with lots of interesting/recognizable actors and a good script. Despite all that, it just wasn't that compelling. There were a few spooky scenes, since it is never clear which weirdo is the Zodiac killer. But all in all, it's a hard movie to really get into, because there is no resolution, and the main character (the author Robert Graysmith), isn't that interesting or likable: it is never clear why he gets so obsessed with the Zodiac killings.