"So I'm not acting that," he said. "I'm not faking my exhaustion, so I can kind of relate in that way, except that's the kind of performance that they're doing every time. So to me it's fascinating from a performance perspective and filmmaking perspective.
"Things can become so standardized in any area of human behavior, human creation, whatever, that if I find a pocket of something that's unusual, that's against the grain, something that I just don't see every day, it'll get my attention," he continued.
"This seemed to me like the perfect kind of little microcosm to study, to both study the specifics and the vicissitudes of (Kink.com), but also to speak about bigger themes of the way that we all kind of interact with each other and power dynamics between any people, whether they're using bondage material or not."
AP Entertainment Writer Sandy Cohen is on Twitter: www.twitter.com/APSandy .