The Mad Genius (1931)
A crippled puppeteer rescues an abused young boy and turns the boy into a great ballet dancer. Complications ensue when, as a young man, the dancer falls in love with a young woman the puppeteer is also in love with.
Directed by: Michael Curtiz
Starring: John Barrymore, Marian Marsh, Charles Butterworth, Donald Cook, Luis Alberni, Carmel Myers
Links: IMDb, Movie posters, Movie stills