'The Texas Chainsaw Massacre' (1974)
"It was one of those movies that was expressly forbidden by my parents: 'Do not see this movie, Patton. Do. Not. See. It!' I finally tracked it down through a friend of a friend of a friend when I was in my late teens, and them watched it on this third- or fourth-generation videotape…which, by the way, is really the perfect way to see it. I know I'm not the first person to say this, but it looked like the movie was actually shot by the killers themselves. Like, they took a break from slaughtering people, got a hold of a camera, and then just filmed the shit they were doing. It's unnerving. It's terrifying. And it's just pure fucking cinema."