Adam Brody

These famous couples discovered romance on set, and it lasted well after they shot their last scenes together.

After trying to keep their secret relationship private – an impossibility in Hollywood where even sneezes are carefully documented – Leighton Meester of 'Gossip Girl' fame and Adam Brody, formerly of 'The O.C.,' are most likely dating. It's a match made in teen drama heaven. So when do they inevitably break up, start dating within their limited social circle of friends and still inexplicably hang