Nick Rosen and Peter Mortimer make climbing films. It’s their world and expertise. And when they heard about Marc-Andre Leclerc, the Canadian free-spirited 23-year-old free soloist who was making some of the boldest ascents in history, they knew they had to track him down. Nomadic and publicity shy, he doesn't own a phone or car, and is reluctant to let a film crew in on his pure vision of climbing. Thus began the journey to create THE ALPINIST, a fascinating, beautiful, and thrillingly filmed investigation into a life spent defying danger. In their conversation with Tiller, Nick and Peter talk about building their relationship with the elusive Marc-Andre (2:15), capturing the purity of Marc’s spirit (7:18), the incredible discipline of alpine soloing (13:15), the process of writing such a kinetic film (17:55), mountaineering cinematography (23:40), and what it means to live a life well lived (31:40).