Filming the Snow Leopard turned out to be a 3 year quest for the team.
To be allowed to film in the Himalaya near the Pakhistan/Afghan border, the crew was put through 2 days of safety training including such things as "land-mine clearing" and "hi-jack attempts".
One cameraman showed signs of hypoxia (lack of oxygen) at 7000 meters above sea level while filming in the Himalaya. The pilot of the airplane instantly decided to fall down 3000 meters in height. The second cameraman didn't realize any of the problems before so he asked, completely surprised, why the pilot ruined his perfect shot.