A Song Goes Round the World (1933)
A Song Goes Round the World (German: Ein Lied geht um die Welt) is a 1933 German drama film directed by Richard Oswald and starring Joseph Schmidt, Viktor de Kowa and Charlotte Ander. An English-language version of the film was made My Song Goes Round the World by British International Pictures, also directed by Richard Oswald. The film serves as a semi-biopic of Joseph Schmidt, who appears in it himself. A 1958 film of the same name was also a biopic of Schmidt, who was by then dead.
More at Wikipedia.