That scene is absolutely indicative of the training Tom received from Vito. Never get angry; never threaten. Always use reason. Tom remains calm also because it doesn't matter what Woltz says; Vito promised Johnny the movie role and Tom knows that he's going to get it one way or the other. So, Tom lets Woltz vent while completely confident that nothing will come of it.
"Generosity. That was my first mistake." "Experience must be our only guide; reason may mislead us." "Instagram is Twitter for people who can't read."
