On IGN movies, there are two trailers up now.

HOWEVER
I just realised this could all be an elaborate prank. Guess when the trailers were released?
April 1.
And it's slated for release in April 2009 as well. Yep, a film may be too good to be true, it'd have to be an April Fools prank.
Oh well, here's a link to the two trailers. Just scroll down to find them.