The Luna Cinema is the country's leading producer of open air cinema events. This summer, they're going bigger than ever. With over 15 fantastic venues in London alone, they'll be screening classic love stories, terrifying horrors, cult comedies, Hollywood blockbusters and everything in between. We can't wait. Join them in Greenwich park for some absolutely great movies. Screenings: - Alien (22 September). Certificate: 15. Runtime: 2 hours 28 minutes. - The Martian (23 September). Certificate: 12A. Runtime: 2 hours 15 minutes. - Labyrinth (24 September). Certificate: U. Runtime: 1 hour 38 minutes. Please note the performance start time is approximate – it may vary slightly depending on the conditions on the night. Screen Location: The big screen will be positioned on top of the hill, next to the Royal Observatory with sweeping views across the River Thames and the city. Access to Greenwich Park is via St Mary’s Gate (If you are coming from Greenwich) or Blackheath Gate (if you are coming from Blackheath). Please note only these gates will be open at the end of the screening. All other gates will be closed.