Anyone who follows the cultural industries — art, music, publishing, theater, cinema — knows of the tussles between artists and those who feed off of their talents. The traditional food chain in movie-making, for example, is a long one: Between those who create a film and those who pay for it — movie goers, cable subscribers, pay-per-viewers, advertisers, rights licensees, and institutional sponsors such as the National Endowment for the Arts — is a multitude of middlemen: online retailers (Amazon, Walmart), streaming video services (Netflix, YouTube, Hulu), theatre venues (Wanda’s AMC, Regal, Cinemark),  product placement and media agencies (Propaganda GEM, Omicom’s OMD), film producers (Columbia Pictures, Marvel Studios, Disney-Pixar), movie distributors (Sony Pictures, Universal, Warner Bros.), home marketers (Fox, HBO), cable and satellite services (Comcast, DirectTV), video syndicators (PMI, TVS), film libraries and archives (Eastman House, Getty Images), and talent agencies (WME, CAA, ICM), each with its own contracts and accounting systems. That’s a staggeringly long list.