A Complete Unknown is a 2024 American biographical musical drama film directed by James Mangold, who co-wrote the screenplay with Jay Cocks. Based on the 2015 book Dylan Goes Electric! by Elijah Wald, the film portrays Bob Dylan through his earliest folk music success until the momentous controversy over his use of electric instruments at the 1965 Newport Folk Festival. Timothée Chalamet (who also produces) stars as Dylan, with Edward Norton, Elle Fanning, Monica Barbaro, Boyd Holbrook, Dan Fogler, Norbert Leo Butz, and Scoot McNairy in supporting roles. The film's title is derived from the chorus of Dylan's 1965 single "Like a Rolling Stone".