That Was Heidelberg on Summer Nights

That Was Heidelberg on Summer Nights (German:Das war in Heidelberg in blauer Sommernacht) is a 1927 German romance film directed by Emmerich Hanus and starring Fritz Alberti, Charlotte Susa and Olga Engl. The film was shot on location in Heidelberg.

Cast
In alphabetical order
 * Fritz Alberti as Sanitätsrat Liningen
 * Fritz Beckmann as Revuedirektor
 * Olga Engl as Frau v. Helling
 * Karl Etlinger as Schmierenschauspieler Ehrenfleck
 * Julius Falkenstein as Stransky
 * Tonio Gennaro as Erste Chargierte
 * Antonie Jaeckel as Frau von Gutsbesitzer Wagner
 * Margarete Kupfer as Studentenwirtin
 * Max Maximilian as Korpsdiener
 * Frida Richard as Großmutter Liningen
 * Ernst Rückert as Rudolf
 * Fritz Schroeter as Geldverleiher
 * Charlotte Susa as Grete
 * Hertha von Walther as Hertha
 * Eduard von Winterstein as Gutsbesitzer Wagner