When Tom, a hapless greeting card copywriter and hopeless romantic, is blindsided after his girlfriend summer dumps him, he shifts back and forth through various periods of their 500 days "together" to try to figure out where things went wrong. His reflections ultimately lead him to finally rediscover his true passions in life.
Directed by: Marc Webb
Wirtten by: Scott Neustadter and Michael Weber
Cast: Zooey Deschanel, Joseph Gordon-Levitt, Clark Gregg, Minka Kelly, Matthew Gray Gubler, Rachel Boston, Geoffrey Arend, Chloe Moritz
Producers: Jessica Tuchinsky, Mary Waters, Steven Wolfe, Mason Novick
This post modern love story is never what we expect it to be -- It's thorny yet exhilarating, funny and sad, a twisted journey of highs and lows that doesn't quite go where we think it will.

Release Date: July 17, 2009

Official poster to be released

Word is from Fox that the 500 Days of Summer poster will be released in the next week or two, so keep an eye on this site for details!

The poster will likely be one of the three Fox had fans vote on.

Posted on March 28, 2009
Topics: 500 Days of Summer News

looks like you can see the chosen one here:
http://www.latinoreview.com/news/exclusive-first-look-new-showest-posters-of-sherlock-holmes-500-days-of-summer-the-hangover-easy-virtue-6468

Rodrigo on Mar 29, 2009
[...] whether this 500 Days of Summer poster is the studio’s finalized one, but since the poster is due to be released sometime in the next couple weeks, I’d think those chances are high. The poster will still be [...]

500 Days of Summer poster debuts at ShoWest | 500 Days of Summer on Mar 29, 2009

500 Days of Summer