Mountainfilm’s 2019 festival takes place May 24 to 27, showcasing some 150 documentaries. Films include Changing the Game, a masterfully told story of three transgender high school athletes navigating the complex world of sports and gender; Any One of Us, a heart-rending film about a professional mountain biker recovering from a devastating spinal cord injury; The Weight of Water, which chronicles blind kayaker Erik Weihenmayer’s inspiring attempt to kayak the Grand Canyon and 17 Blocks, an astonishing verité documentary that follows a Washington, D.C., family over two decades as they wrestle with addiction, loss and hope.