Directed by Christian May. With Herbert Nitsch, Peter de Hueber, Markus Helm, Eugenijus Kaniusas. On 6 June 2012, the apnea diver Herbert Nitsch sought to improve his own world record in freediving by another 100 feet -- to 800 feet (244 m). The record attempt off the Greek island of Santorini was to only be the beginning of his "1,000 feet" project.. Unconscious, he had to be brought to the surface by rescue divers -- after reaching a depth of more than 818 feet (249.5 meters).This…