At first, I heard that it was coming out in December, but now it tells me it's coming out in November, so yeah...
TWILIGHT - The Official Movie Site - IN THEATERS 11.21.08
Official site for the movie Twilight, apperantly in theaters 11 - 21 - 08. All there needs to know is on the website. Hope this was help to you!
YouTube - Final Twilight Trailer from Summit Entertainment!
I do believe this is the official trailor...not too sure, but I think so! ^^