THROUGH MONDAY. Film festivals with a conscience are not hard to find in Colorado, but rarely do they feature the breadth and depth of subject matter that Telluride Mountainfilm does. The festival, which began in 1979, offers everything from short environmental documentaries shot on iPhones to epic nonfiction features on political, spiritual and humanitarian topics, such as the healing-focused “Almost Sunrise,” which follows two Iraq veterans on a 2,700-mile foot trek across America.