With the boom of DVD and the Internet over the last five years, movie trailers are more popular than ever. A two-minute advertisement that usually sums up a film's plot and cast, the trailer attempts to seduce the audience and often barely relates to the actual quality of the film production. In fact, the best trailers could be considered exemplars of an art form in their own right. Focusing on the horror genre, join the Harvard Film Archive for this special Halloween screening as we present the most horrifying (and hilarious) trailers of all time.