The crew are off course, 200,000 miles from home and without a guidance computer. Their lives now depend on their flying skills - and Jim Lovell’s wristwatch. #13MinutestotheMoon

For more Apollo films and photos: www.bbcworldservice.com/13minutesPresented by Kevin Fong.Archive: NasaStarring Chuck Deiterich Jim Lovell Poppy Northcutt Fred Haise Jim Kelly John Aaron Joe Kerwin Written by Kevin Fong and Chris Browning Theme music by Hans Zimmer and Christian Lundberg for Bleeding Fingers Music BBC Radio Science Unit for the BBC World Service