Sur le fil des 4000 is a documentary film by Gilles Chapaz, which traces the last rope of the mountaineering duo Patrick Berhault and Philippe Magnin. The objective of the roped party was to climb the 82 peaks over 4000 meters in the Alps, by carrying out the connecting routes on foot, on skis or by bike. All at the end of winter and the beginning of spring. They left on March 1, 2004, from Saint Christophe en Oisans. The film shows us in images this alpine adventure, from which the spirit of competition is excluded, to make way for the simple pleasure of being in the mountains. This posthumous film was edited after the disappearance of Patrick Berhault, which occurred during the expedition on April 28, 2004.

La Cordée de Rêve traces the great alpine journey made from August 2000 to February 2001 by Patrick Berhault. His great crossing of the Alps, here told to his daughter, will be done sometimes alone, sometimes surrounded by friends: Patrick Gabarrou, Patrick Edlinger, Ottavio Fassini, Gaël Bouquet des Chaux, Valérie Aumage, Philippe Magnin. During this alpine trip he will find his brother-in-arms Patrick Edlinger for the dolimitic part and will also see the genesis of the "Cordée Magique Berhault/Magnin". For 167 days, in sneakers in the fall, on touring skis in the winter, Patrick Berhault chained 2 to 3 stages of an average hiker daily, swallowing 1,500 to 2,000 meters of vertical drop and up to 45 kilometers per day. , and climbed 22 peaks. It's called that: "La Grande Cordée" but behind this title lies an exceptional human and sporting performance.