Casey Affleck on how he chooses a role and what makes a killer tick

Casey Affleck is starring in The Killer Inside Me where he plays a small-town sheriff’s Deputy. Oh, and he a psychopathic killer.

He tells USA Today that he was attracted to the script “because it was a really interesting portrait of a very extreme person. The violence and sex were never sensationalistic. He’s a sad, violent, unhappy person. I felt for him.”

The director, Michael Winterbottom wanted Affleck from the very beginning. He says that Affleck “has a gift to convey that something else is going on in his head that he’s not showing you. He has a great sense of timing and he’s interesting. I don’t know if it’s technique or if it’s who he is. The days he had to be violent, those were the difficult days for him. You felt that Casey found it quite hard to get into Lou those days.”

In the video below, he talks briefly on how he chooses a role (at the:39 mark).

The trailer is after the jump