Wondering what to watch on Halloween night? We have four lists for you, each one dedicated to a different "era" of horror. Each playlist is ordered chronologically, but you can (and should) mix things up to your preference.  We tried limiting each list to eight hours worth of films, but we couldn't limit ourselves well enough, so instead we've provided the runtime (Rt) for each film in minutes so you can choose the best films for whatever time constraints you may or may not have.