Halloween is finally upon us, and a lot of you have been holding down your own horror movie marathons. We're sure you've included the classics, but not many of them actually take place on All Hallow's Eve. And the ones that do? Well, quite a few are not very good. John Carpenter's 1978 Halloween is of course a classic. 2009's Trick 'r Treat is a new perennial favorite that grows its cult base every year. And you simply can't go wrong with The Nightmare Before Christmas between now and New Year's Eve. But you may want to seek out new and interesting films that revolve around this terrifying treat-filled holiday. The following list of movies is not for you! This is a warning: Do not invite your friends over for the following 13 fright flicks, as they are the worst Halloween movies of all-time. That said, they are not without their merits.