The documentary En équilibre, directed by Thomas Gargne, follows a 4,200 km cycling journey through the Alps with his lifelong friend Guillaume Johanny, a fellow trail running enthusiast. The film explores the environmental footprint of trail running, a sport that involves running on natural terrain, often in remote areas. Gargne, a 25-year-old graduate of an engineering school in ecology, embarked on the trip with Johanny, traveling through Switzerland, Austria, Italy, Slovenia, and back to France from September 13 to November 1. The journey involved climbing 70,000 meters in elevation over 50 days. The documentary was first shown on October 24 at the Aurillac cinema Le Cristal. Gargne and Johanny aimed to merge their love for sports with environmental reflection. They interviewed fifteen individuals from the trail running world, including researchers, event organizers, and runners. These interviews were included in the documentary to highlight the environmental impact of trail running, which Gargne criticizes for its anthropocentric focus—prioritizing personal achievement over the well-being of wildlife and plant life. He questions why participants continue the sport despite knowing its environmental harm, suggesting a disconnection from nature. The documentary also examines major international trail running events, such as the UTMB (Ultra-Trail du Mont-Blanc), which Gargne argues has increased the environmental impact of the Julian Alps event in Slovenia by attracting more international participants, many of whom travel by plane. However, the UTMB organization has downplayed its environmental impact in its response. Gargne emphasizes that the film is not meant to accuse but to spark debate and reflection without trying to convert viewers. He acknowledges the economic and tourism benefits of such events, noting that environmental issues are complex and do not have a single answer. Gargne also reflects on his own position in practicing ecology, recognizing that his ability to cycle and shop at a biocoop—a store that sells organic and locally sourced products—is due to living in the city center. Despite this, he believes that traveling by bike or on foot offers a more meaningful experience, allowing for deeper engagement with landscapes and people. The documentary aims to encourage viewers to think critically about the balance between personal passions and environmental responsibility.