Mark Ruffalo, Keira Knightley and James Corden: Meet the Cast

Mark Ruffalo (Marvel Avengers Assemble), Keira Knightley (Atonement) and James Corden (Gavin and Stacey) discuss their new film. Funny, inspirational and uplifting, Begin Again follows Greta (Knightley) and her long-time boyfriend who move to New York to pursue their passion for music. Initially heartbroken when he rejects her for fame and fortune, her life begins to look up when a down-on-his-luck record producer Dan (Ruffalo) stumbles upon her singing during an open mic night. Hosted by Edith Bowman at the Apple Store, Regent Street in London.