There are some trailers you just sit back, press play, and watch. There are others that require a little preparation, like the new peek at Guillermo del Toro and Troy Nixey's horror remake of the seventies classic, Don't Be Afraid of the Dark. This isn't simply a showcase of closeup screams given by Katie Holmes, Guy Pearce, and the other players. Instead, these guys want audiences to start fearing the dark well before the film's 2011 release, and that means setting the mood.

So, what you'll have to do is turn off all the lights, shut the shades, and face del Toro's darkness. When you're all ready, hit the jump and watch the trailer.