The Marathon Runner (German: Der Läufer von Marathon) is a 1933 German sports film directed by Ewald André Dupont and starring Brigitte Helm, Hans Brausewetter and Ursula Grabley. It was based on a 1928 novel by Werner Scheff, adapted by screenwriter Thea von Harbou. The film focuses on a love triangle between three German athletes competing at the 1932 Olympic Games in Los Angeles.[1] It was shot at the Johannisthal Studios in Berlin with sets designed by the art directors Ernő Metzner and Erich Zander. The German premiere took place at the Ufa-Palast am Zoo. It was the last film Dupont made in Germany, before escaping into exile following the rise to power of the Nazis.