Prepare yourself for some Christmas magic, because Pop Up Screen are the only cinema in London guaranteeing you a white Christmas. Yes you've read that correctly, the cinema will be filled with snow to celebrate the festive season, alongside a magical wardrobe entrance that promises to make you feel five years old again. After George Bailey (James Stewart) wishes he had never been born, an angel (Henry Travers) is sent to earth to make George's wish come true. George starts to realize how many lives he has changed and impacted, and how they would be different if he were never there. Certificate: U. Runtime: 2 hours 15 minutes. Children under 16 must be accompanied by an adult. Doors open: 7:30pm. Film starts: 8:30pm.