September 14, 2011
"Dennis Lehane says that writing is like a muscle, and once it’s built, things start flowing. And I think that’s where Sean’s at: he’s built his acting muscles up to a degree where his instrument is very highly tuned. But he worked hard on Mystic: he was at the gym practically every night. He knows what he has to do to look and behave the way he wants."

— Adam Nelson on Sean Penn