"Everest has been summited over 13,000 times. But only five people have ever climbed the direct North Face. And no one in the world has ever skied it." That's the opening line in the trailer for "Everest: The Other Side," which made its debut at the Venice Film Festival.

The film, directed by Elizabeth Chai Vasarhelyi and Jimmy Chin, follows elite ski mountaineers Jim Morrison and Hilaree Nelson as they try to fulfill their shared dream of climbing and skiing the North Face of Everest - the most difficult and dangerous climb on the mountain and the most coveted ski line on earth.

Vasarhelyi and Chin are no strangers to death-defying subjects.