If everything was planned, it would be dreadful. If everything was unplanned, it would be equally dreadful. Cinema exists because there are elements of both in everything. There are elements of both in documentary. There are elements of both in feature filmmaking. It’s what makes, I think, photography and filmmaking of interest. Despite all of our efforts to control something, the world is much, much more powerful than us, and more deranged even than us.

—Errol Morris