Denis Ducroz, born in 1949, is a French Chamonix-based mountain guide, filmmaker, director, and writer. He has established himself as one of the most active filmmakers in the field of high mountain and expeditions, both as a cameraman and director, collaborating on numerous films dedicated to the mountain world. His audiovisual output has expanded over time to include social, economic, environmental, and cultural themes, while remaining focused on the world's mountains and their populations. Among the most notable is "Les inconnus du Mont-Bla…