Ani-Kraze has subbed the trailer thingy for Advent Children, so go get it at Animesuki.
Man I almost cried when I saw it... to actually hear Cloud speak and watching Sephiroth go into the flames... together with my FAVORITE song from all of FFVII awoke so many memories.

*Goes off to re-play FFVII for the 10th time, awaiting the movie*