“To Hold a Mountain,” a documentary from directing duo Biljana Tutorov and Petar Glomazić about sisterhood and solitude in the Montenegrin highlands, won the Grand Prix at Millennium Docs Against Gravity during an award ceremony in Warsaw on Thursday. The film, which won the World Cinema Grand Jury Prize at Sundance earlier this year, was praised by the jury as “a nuanced portrayal of sisterhood, adolescence and the profound, generative role that nature and family hold in shaping who we are.” Variety ‘s Murtada Elfadl described it as “an emotionally shattering meditation on grief and perseverance.” “The film takes us into a magical world — a chosen solitude shared between an aunt and her niece, redrawing for us the beauty of family bonds within an enchanting natural landscape and rural tradition filled with love and patience,” said the jury.…