It’s official: Grammy-winning singer FKA twigs is set to star as Josephine Baker in a feature biopic of the American-French entertainer’s trailblazing life, with French filmmaker Maïmouna Doucouré ( Cuties , Hawa ) writing and directing. The project will launch international sales at the Cannes Film Festival , which kicks off Tuesday, with shooting scheduled for the fall. StudioCanal is producing alongside Bien ou Bien Productions, the Bordeaux-based French outfit that produced Doucouré’s prior features, and will handle theatrical distribution across its core territories of France, the U.K., Germany, Italy, Benelux, Poland, Australia and New Zealand. “I cannot wait to embody Josephine Baker, bringing her fight, her love, her losses, her talent and her heroism to the big screen,” twigs said in a statement.…