500 Days of Summer - Trailer

I am intrigued by this movie. I like the pairing of Zooey Deschanel and Joseph Gordon-Levitt. Both are very good actors and not a pair I would have thought to see together. It would seem to indicate that they are interested in more than box office as neither one is a proven draw. As for the trailer, it is a little odd, no dialogue and one of the strangest voice overs I have heard in some time.