1939

… Story

1937

… Writer

1936

… Story

1934		Flirtation … Writer
1934		Stamboul Quest … Story … Screenplay

1933

… Screenplay

1931

… Writer

1930

… Writer

1929

… Story

1927		Mata Hari: the Red Dancer … Writer
1927		The Vice of Humanity … Writer
1927		Der Meister der Welt … Writer
1927		Die Geliebte … Screenplay

1926

… Writer

1925

… Writer

1923		The Countess of Paris … Writer
1923		Tragedy of Love … Writer

1934

… Director

1924

… Director

1927

… Music

1924

… Editor

1924

… Producer