Annika Iltis on film's inspiration, surviving the grueling 100-mile run
The film's co-director talks about the magazine article that inspired the film, seeking out the race's elusive and secretive founder Lazarus Lake and finishing both the 100-mile endurance test and a four-year journey of making a feature documentary:
http://moveablefest.com/moveable_fest/2015/12/annika-iltis-barkley-marathons.html