Margaret Parsons, head of the film programs and Sonja Simonyi, curator of the Modernity and Tradition film series. In Europe during the period between the two world wars, artistic motion pictures were as popular a medium of expression as photography. The National Gallery of Art film series Modernity and Tradition: Film in Interwar Central Europe, which accompanies the Gallery's exhibition on tour, Foto: Modernity in Central Europe, 1918-1945, includes more than thirty documentaries, features, and experimental films.