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