Together on Graham's sofa tonight: Wonka and Dune star Timothée Chalamet, playing the young Bob Dylan in A Complete Unknown, Oscar-nominated Colman Domingo, performing with real-life former inmates in prison drama Sing Sing, British star Andrew Garfield (Spider-Man, Hacksaw Ridge), in non-linear romance We Live in Time and Smithy and Nessa themselves, James Corden and Ruth Jones, together again for a Gavin & Stacey Christmas special. With music from Icelandic singer-songwriter Laufey, performing her new single Christmas Magic.