http://movies.netflix.com/WiMovie/Trick_r_Treat/70060004?trkid=2361637#height2315
I really enjoyed House of the Devil. A good throwback to classic 80's horror. Probably boring if you grew up on saw or other torture porn-type flicks, but I can't really stand that garbage. If you like carpenter's halloween or hitchcock type suspense and classic horror style, House of the Devil rocks. Trick 'R Treat is one of my favorites lately, not really all that scary but really captures the holiday spirit.
Thankskilling is worth watching for the lulz. It's only about an hour long I think.