Jan 17, 08 12:19 PMKatherine Heigl and Michael Douglas posed for photos last night as they left the "Late Night with David Letterman" studios in New York. Heigl is currently promoting her new film, 27 Dresses, which is due in US theaters on January 18. In the film, a young woman (Heigl), after serving as a bridesmaid 27 times, wrestles with the idea of standing by her sister's side as her sibling marries the man she's secretly in love with.













