Roman Polanski on why Stanley Kubrick's "2001: A Space Odyssey" (1968) was the only movie that really showed what one experiences under the influence of LSD:
"Interviewer: How did you interpret the ending of '2001'?
Polanski: It’s extremely ambiguous, but we’re led to understand that if there is a vastly superior intelligence, then we’re incapable of understanding and perceiving it. If it contributes to our development, then it might well be hidden from us.
Kubrick gives this idea a cinematic form. Apart from that, what I like about the film are its technical and magical aspects. It’s full of fascinating effects like the voyage into space at the end. It’s a real “trip.” There are people who give themselves a headache trying—and failing—to show how it really is when you take LSD. I’ve seen very weak efforts in other films. Without showing it directly, the film has really grasped what you see when you take LSD."
(Roman Polanski's interview with Michel Ciment, Michel Perez & Roger Tailleur, Positif, 1969)
Miami Vice (1984) was the first TV show to use contemporary pop music as a storytelling tool. The "In the Air Tonight" sequence in the pilot was groundbreaking, as the lyrics were used to replace dialogue and heighten the emotional stakes.
In The Deer Hunter (1978), Michael Cimino urged Christopher Walken to spit in Robert De Niro’s face. Walken actually did it. De Niro’s stunned reaction is real and he was reportedly walked off set. Cimino later said of Walken, “He’s got courage.
Pacino scoffing but being so obviously terrified and saying “they wouldn’t dare” in the Irishman pops into my like once a week. The brief glance back at De Niro in between repeating himself. Damn.