For Valentine's Day the National Theatre is projecting on to the NT flytower Frank Capra's screwball romance 'It Happened One Night' (1934), starring Clark Gable and Claudette Colbert. You're advised to bring a blanket and something comfy to sit on for this outdoor screening, which is best viewed from the Baylis Terrace, level 2. The Olivier stalls bar nearest the terrace will be selling prosecco, chocs and Turkish Delight.