West of Shanghai is a 1937 American adventure film directed by John Farrow and starring Boris Karloff as a Chinese warlord. It is based on the 1920 Porter Emerson Browne play The Bad Man. Three other films, all titled The Bad Man, are also based on the same play:in 1923, directed by Edwin Carewe and starring Holbrook Blinn
in 1930, directed by Clarence Badger and starring Walter Huston
in 1941, starring Wallace Beery and Ronald Reagan and directed by Richard Thorpe.