“Being versatile, I played my mother's father.”
James Cagney - George M. Cohan

“At least people in plays act like they've got sense.”

Peter Lorre - Dr. Einstein

“That's what show business is all about. Acting like an idiot. It's not you, you're just doing your job. You know what I mean. Look at it this way, most people feel like idiots most of the time. But they don't get paid for it.”
Michael J. Fox - Michael Chapman

“- Billy: I'm going fucking nuts, man. I can't be someone else every fuckin' day.
- Dignam: Calm down. Most people in the world do it every day.”
Leonardo DiCaprio - Billy
Mark Wahlberg - Dignam

“There is no one more full of shit than a cop except for a cop on TV.”
Leonardo DiCaprio - Billy