US actor-director George Clooney on Saturday called for stolen artworks to be returned to their rightful owners, adding that many works looted by the Nazis are still unaccounted for. "It's a story that is going to keep coming up," Clooney said at Berlin's Berlinale Film Festival, which marked the European launch of his new film The Monuments Men. The movie tells the story of a special US military unit charged with tracking down and protecting art during the Second World War. "There is a lot of art that is still missing," he added. -- SPA 19:59 LOCAL TIME 16:59 GMT تغريد