People always lose their way on their path to stardom. Itâs inevitable. Thatâs one of the core messages in âMainstream.â The film was written by Gia Coppola and Tom Stuart. It was directed by Gia Coppola, whose previous work includes the film âPalo Alto.â It was released by IFC Films. The film follows Frankie, a wannabe YouTuber working as a bartender. Frankie happens to meet Link, an eccentric performer who works odd jobs around Los Angeles. Together with Frankieâs friend Jake, the trio make YouTube videos starring Link, which become bigger and bigger as they get more popular.