Meet David Greenspan, editor of "Grey's Anatomy". David's thesis film from USC earned him a Palme d'Or Award from the Cannes Film Festival. David talks about his mentors, influences, and his work on the popular TV show. He also explores and explains the various roles he has held as Asst. Editor, Editor and Director. Watch this interview to see how David Greenspan’s diverse experience has honed his skills as a filmmaker.