There are a couple of (arguably) A-List celebrities filming Marley and Me, based on John Grogan's book of the same name, in Center City Philadelphia (Broad and Walnut, to be exact) today. Including this TV hottie. Can you identify this Grey's Anatomy cast member who'd never really take SEPTA but is pretending to for the sake of movie? If you guessed Eric Dane, you're right! [You stalker.] Also in the movie are Owen Wilson and......