It starts off with a "everything you see is real-time gameplay footage" disclaimer which makes the following scenes all the more impressive. Taking place around events focusing on the pseudo-mystery of Central Park in New York City, something supernatural is out to get you! Whatever... the trailer does a much better job of setting the story up. Anything that gets an insane choir singing in some other language (reminded me a little of the Ghost in the Shell movies/series... and a bit of Suikoden III's opening) is going to get gamers pumped. Let us know what you think.
[update: apparently the trailer is really old, but it doesn't change the fact that it's cool, right?]