premise: Broadway Rose is a 1922 American silent romantic drama film released by Metro Pictures and directed by Robert Z. Leonard. It stars Leonard's then-wife Mae Murray and Monte Blue. The film is based on an original story by Edmund Goulding written for star Murray, and was produced by Leonard's and Murray's production company Tiffany Pictures.
hypothesis: Robert Z. Leonard is not an American actor.
reason: The text does not suggest where Robert Z. Leonard is from.