Don't Be Afraid of The Dark Trailer

This trailer is another that includes a long period of darkness. From the beginning of the trailer, a messave 48 second of it is in complete darkness, with a creepy whispered voice over - from who we expect to be someone involved in the movie.
The music that does appear in the trailer is very quiet, except for some spikes of loud metallic noises. Also, a lot of the trailer in spent in nearly silence which is very creepy. The audience is sat waiting for something to happen, and they know that when it does, they'll be a loud noise that will make them jump.
The use of intertitles is very clever in this one, as you see bits of the movie WITHIN the letters, not the words seperating different shots.
The trailer really doesn't reveal much at all, which will make people want to see it to find out what's going on.