Started his career in the late 60s making sex films. But after two movies, he decided to change directions because he hated making them. It wasn't the sex and nudity that bothered him (he continued to include sex and nudity in his horror films later), he just found them to be very restricting creatively. He said the story lines and shots just revolved around people taking their clothes off and going to bed, and after a while you run out of things to do with a bed.