Since the 1960s, documentary films have moved closer to the mainstream, thanks to the popularity of rockumentaries, association with the independent film movement, support from public and cable television, and the rise of streaming video services. Documentary films have become reliable earners at the U.S. box office and ubiquitous on streaming platforms, while historically they existed on the margins of mainstream media. How do we explain the growing commercialization of documentary films and the conditions that fueled their transformation? The growing commercialization of documentary film...