It’s been exactly 20 years since Errol Morris made a name for himself with The Thin Blue Line, which served notice to the film world that documentaries could be stylish, confrontational, and highly interpretive. The use of dramatic reenactments, intense close-ups, animated graphics, dark humour, and hypnotic music scores—à la Philip Glass—have since become commonplace elements. (And, yes, Michael Moore, I am looking at you.)