Joss Whedon does horror

Joss Whedon, known for the television shows "Buffy the Vampire Slayer", "Firefly" and the current "Dollhouse", has been working on a horror film. But, with the Joss twist, of course. I know that some of the actors in his stable will be in the film, but I don't know anything else about it. This weekend, at Comic-Con, some images of the posters for the movie have been released, and they definitely show Joss' twist. Three posters were released, including the one below.





Here's a link to where all three posters can be seen.

I'm not big on horror movies, but I might have to go see this one just because of Joss and the cast. I'll just bring Teddy (or maybe even Gloomy) to protect me.