A lot has been said about the movie. For me, it is the ideal popcorn movie with its share of terror, suspense, and intrigue. I also loved the original novel by Robert Bloch. Hitchcock said it himself that everything came from Bloch’s book and for a Hitchcock adaptation, he stuck to the book pretty closely although Norman is more sympathetic in the film. In the book he is more perverse. Bloch knew how to ramp up the tension. As a matter of fact, the scene where Norman almost fails at sinking the car into the swamp came from the novel originally. Anyway, Bloch was a great crime and horror writer who gave us a great book and Hitchcock was the best possible director to make the film. I am grateful to both of them.