Here are some up and coming movies that look really good.
First, my personal fav.
http://www.apple.com/trailers/fox/i_robot/video_large.html
http://www.anchorman-themovie.com/large_trl.htm
http://www.apple.com/trailers/universal/the_bourne_supremacy/large.html
http://movies.yahoo.com/movies/feature/themanchuriancandidate.html
http://www.apple.com/trailers/dreamworks/collateral/large.html
http://movies.yahoo.com/movies/feature/suspectzero.html
http://www.movie-list.com/f/forgotten.html
http://www.apple.com/trailers/disney/the_incredibles/large.html
http://www.apple.com/trailers/fox_searchlight/the_ringer/
http://www.apple.com/trailers/paramount/spongebobsquarepantsmovie/tr_large.html
http://www.themoviebox.net/movies/2004/0-9ABC/Blade_Trinity/trailer-page.html
There are a few others without trailers, including the sequel to Meet the Parents.