"I guess there would have to be a Scorsese movie, but there are so many to choose from. You could go for the trilogy –the Goodfellas, Casino, Wolf of Wall Street trilogy — which I absolutely love. I mean, the rise and fall, it’s a classic thing in cinema — all our lives are a rise and fall, aren’t they, if we’re lucky; it could be just a bit of a rise as we go from adulthood to old age and then we die. [Laughs] But Goodfellas and Casino, the journey of those movies to The Wolf of Wall Street, is where the morality is slowly sucked out of them. So Goodfellas is a film where they have a system, a moral code, which is eroded in Casino, where they have a slight system or morals, but it’s all slightly tarnished. But by the time you get to The Wolf of Wall Street, there’s no moral code at all."
Source