Planet Terror, Quarantine, The Strangers, Army of Darkness (if it's not a house,) The Evil Dead, Invasion of the Body Snatchers, Village of the Damned, Hellraiser, Salem's Lot, and The Hills Have Eyes...
All of those, I think could make for an awesome scarezone. Not sure which ones they could actually use, but all of them would be interesting, in my opinion. I actually think Army of Darkness could make a better scarezone than an actual house. Salem's Lot could be bad ass.