Timothée Chalamet is channeling Bob Dylan in the first trailer for James Mangold’s upcoming biopic 'A Complete Unknown.' The 'Dune' actor stars in the film as the iconic folk singer-songwriter of the 1960s. Chalamet has also said he does his own singing for the role — just like his 'Dune Part 2' co-star Austin Butler did for his role in 'Elvis' — building on his musical work following his performance in 'Wonka.'