I Lost My Heart in Heidelberg (1926)
I Lost My Heart in Heidelberg (German:Ich hab mein Herz in Heidelberg verloren) is a 1926 German silent film directed by Arthur Bergen and starring Emil Höfer, Gertrud de Lalsky and Werner Fuetterer. The title alludes to the popular 1925 song I Lost My Heart in Heidelberg composed by Fred Raymond with lyrics by Fritz Löhner-Beda and Ernst Neubach. The film taps into the nostalgic reputation of Old Heidelberg.
More at Wikipedia.