One of the reasons I loved working with Tom is people feel they know who he is... I think working with an actor who the audience already has a relationship with actually helps you in a film like this.
There's good and bad in everybody. I wasn't looking for the good, or looking for the bad. This is a man who signed his pact with the devil 20 years ago, and he's learned to live with it. He's tried to protect his family from it.