The Whistlers (2019)
A Romanian police officer, determined to free from prison a crooked businessman who knows where a mobster's money is hidden, must learn the difficult ancestral whistling language (Silbo Gomero) used on the island of Gomera.
Director: Corneliu Porumboiu · Cast: Catrinel Marlon, Vlad Ivanov, Sabin Tambrea, George Pistereanu, Julieta Szönyi