Question: When is the director of film Tin Pan Alley (Film) 's birthday?
Sentence (from "Tin Pan Alley (film)"): Tin Pan Alley is a 1940 musical film directed by Walter Lang and starring Alice Faye and Betty Grable as vaudeville singers/sisters and John Payne and Jack Oakie as songwriters in the years before World War I.
Relevant evidence: Yes