Imagine a world run by vampires living off a dwindling human blood supply. Boo. But throw Ethan Hawke into the mix and then that future seems pretty darn exciting. The actor visits Olivia Munn on tonight's Attack of the Show to talk about his new bloodthirsty sci-fi movie, Daybreakers. Tune in at 7pm to hear his take on playing a vampire (complete with fangs), the true message behind Daybreakers and more.