Sounds like fun. How does it work? Here are a few suggestions of my own, in keeping with it being October and the month of spooks n' ghouls:
Fright Night (1985) - CLASSIC vampire movie. If you haven't seen it, watch it! You won't regret it, trust me!
Halloween (the original)
The Fly (80's version)
Bram Stoker's Dracula
Tales from the Crypt: Demon Knight
Ghostbusters (the original)