I love the Saw movies; they're this generation's Friday the 13th, a series of slasher flicks that please on a goofy, splatter-movie level. I also like the music, by Nine Inch Nails member Charlie Clouser. That said, they keep using the "big reveal" music from the end of every Saw picture in movie trailers, like the final Valkyrie trailer, Deja Vu, and now The Box, the third film from Donnie Darko and Southland Tales writer/director Richard Kelly.
Aside from that musical misstep, the trailer looks awesome.
The Box opens on October 30th, 2009. Here is the IMDb page for the movie, because there are 33 other movies with the title The Box.