Big Sky Documentary Film Festival is an annual non-fiction film festival held in Missoula, Montana each February. The event showcases documentary films from around the world. The festival first began in 2003 as a seven-day event. It is now a ten-day event. The Big Sky Documentary Film Festival is the largest cinema event in Montana. The festival presents an average of 150 non-fiction films annually at the historic Wilma Theater, The Top Hat, The Roxy Theater, and Crystal Theater in downtown Missoula.