"There is no true story of the Residents," reads an onscreen epigram from Simpsons creator Matt Groening in this documentary about the experimental band and multimedia collective. "Our knowledge is incomplete. Anything is possible." Because the band members have managed to remain anonymous over the course of 50 years together, it's hard to say how much of this movie is true, but like the Residents' records, videos, and stage shows, it’s a wild, twisted ride. Director Don Hardy follows the members on their journey from artistic outsiders in small-town Louisiana to world-renowned weirdos, drawing on interviews with high-profile fans (Groening, Penn Jillette, Les Claypool of Primus) and a group of old dudes who witnessed the group's formation and development (and who may be uncostumed Residents themselves).