Bob Dylan performs at the 1965 Newport Folk Festival.Alice Ochs/Michael Ochs Archives/Getty Images"A Complete Unknown" stars Timothée Chalamet as Bob Dylan during his rise to fame in the '60s.The movie's climax is Dylan's performance at the 1965 Newport Folk Festival.Dylan performed with an electric band, causing him to be ostracized from the folk scene.James Mangold's new film "A Complete Unknown" reaches its climax when Bob Dylan (Timothée Chalamet) takes the stage at the 1965 Newport Folk Festival, drawing boos from the crowd and disgust from his peers.But out of all the performances Dylan gave in the '60s, what made this one so controversial?