Opening with a deeply sincere “I don’t give a fuck!”, Austin filmmaker Ben Steinbauer’s investigative doc sets out to prove the contrary. Steinbauer’s mission is to find Jack Rebney, the hitherto anonymous pitchman whose fabulously profane tantrum during the course of making a 1989 RV infomercial—amid a plague of insects on the hottest days of an Iowa summer—led to YouTube stardom two decades later. Rebney’s performance, popularly known as “The Angriest Man in the World,” was a five-minute clip reel produced by the crew as an act of vengeance. Originally a bootleg VHS tape dubbed and passed from hand to hand, the reel went viral once posted online, and subsequently entered popular culture. Steinbauer offers other examples of YouTube boobery—the haplessly uncoordinated “Star Wars Kid” and malapropism-prone positive thinker Aleksey Vayner—then documents his search for Rebney. Turns out that the Winnebago man is a hermit living atop a California mountain with a dog named Buddha; he’s also a former broadcast journalist and the author of a screed entitled Jousting With the Myth: An Heretical Analysis of God, Religion, Sex, and Politics. Rebney’s good-natured calm and apparent indifference to his Internet notoriety initially foils the filmmaker. Hoping to recreate the original clip reel, Steinbauer is nonplussed and abashed. Was it all an act—or is this? Pay your money and find out.