I have most of the Good horror movies on Netflix on DVD already, with the exception of the few I've seen recently. That place is hopelessly clogged with wickedly low-rent direct-to-video crap. So, I haven't got much in the queue: John Dies at the End, Hobo with a Shotgun, mostly self-aware, jokey stuff. Used to have Bug, wanted to watch it, but bad timing on Netflix's part- they retired it about 10 days ago.
American Mary (of course)
Little Witches (morbid curiosity)
Dracula's Widow (which I've been avoiding because there's no listing on Letterboxd.com)
Leviathan (but no Lifeforce- I'm extremely disappointed that I missed that)
Howling VI (which I'm pretty sure I'm going to pass on, it looks boring as hell)
Nightscare (glad that's still up; saw it in 2008 and really liked it)
Demon Knight (I promised dave13)
Event Horizon (some consider it a horror film)
Curse of the Puppet Master
From Dusk Till Dawn 2
From Dusk Till Dawn 3
Land of the Dead
Mum & Dad
Let the Right One In (I'm wary of the subtitle problem)
Of course, what I really want to see is Black Swan, Jennifer's Body, and The Lords of Salem. But...