The Marathon Runner

The Marathon Runner German Der Lufer von Marathon is a 1933 German sports film directed by Ewald Andr Dupont and starring Brigitte Helm, Hans Brausewetter and Ursula Grabley. It was based on a novel by Werner Scheff. The film focuses on a love triangle between three German athletes competing at the 1932 Olympic Games in Los Angeles. It was the last film Dupont made in Germany, before escaping into exile following the rise to power of the Nazis.

Source: Wikipedia