Constantine (2005) – IMDb

John Constantine: Detective. What if I told you that God and the devil made a wager, a kind of standing bet for the souls of all mankind?

Angela Dodson: I’d tell you to stay on your meds.

John Constantine: Humor me. No direct contact with humans. That would be the rule. Just influence. See who would win.

Angela Dodson: Okay, I’m humoring you. Why?

John Constantine: Who knows. Maybe just for the fun of it. No telling.

Angela Dodson: Oh, so it’s fun? It’s fun when a man beats his wife to death? It’s fun when a mother drowns her own baby? And you think the devil is responsible? People are evil, Mr. Constantine. People.

John Constantine: You’re right. We’re born capable of terrible things, but then sometimes something else comes along and gives us just the right nudge.

Angela Dodson: Well, this has been real educational, but… I don’t believe in the devil.

John Constantine: You should. He believes in you.