Griffin is a good friend with actor Michael Keaton.
Griffin founded a production company Double Play Productions with Amy Robinson.
His height is 5' 7" (1.70 m).
Griffin produced and starred in the film Game 6 (2005). which premiered at the Sundance film festival in 2005.
Griffin is the son of producer/writer Dominick Dunne.
Griffin: Acting is what I originally wanted to do. Unfortunately, the business of being an actor is a lot more disheartening than the business of being a producer. As an actor you're beholden to the material and taste of other people who are developing projects you may or may not get in. As a producer you come up with the idea.
Griffin: You're more open-minded when you know you're not listening to ideas with a gun to your head.
Griffin: I've always been schizophrenic. I've never been interested in limiting myself. I came to New York to be an actor and I became a film producer first. I only got to be able to act, because I gave myself a job as a producer.