In 2015 alone, he released three acclaimed films on widely different subjects: Sinatra: All or Nothing at All; Steve Jobs: The Man in the Machine; and Going Clear: Scientology and the Prison of Belief. What Gibney’s docs have in common is a fascination with the beginnings of things—how these phenomena came to be. That far-reaching inquisitiveness informs his four-part Netflix series, Cooked, an anthropological look at traditional world cuisines.