Two of the main cast of hospital set drama Grey's Anatomy, Eric Dane and Patrick Dempsey, have signed on to the packed cast of Garry Marshall's romantic comedy Valentine's Day. Dempsey will play a married doctor (big stretch) dating Jennifer Garner's character on the side, with her unaware that he's married to someone else. Dane will play a quarterback, coming to the end of his career. Already in the cast are *takes deep breath* Julia Roberts, Anne Hathaway, Jessica Alba, Jessica Biel, Shirley MacLaine, Bradley Cooper, Ashton Kutcher, Topher Grace, Emma Roberts and Hector Elizondo. Filming has already begun in Los Angeles.
