Contest: Win Five Free Movies (and lend a hand!)

I have a problem. I have a photo for use in a future "Saturday Scream Queen" feature (I think), but I didn't put her name in the file's name, and I have no idea who the actress is at this point. Does anyone out there recognize her?

The first person to tell me who is either via a Facebook reply or in a reply to this post (along with a film credit so I can verify her ID) will be awarded five DVDs from my stack of viewed screeners.

Here's the mystery woman: