Bill Cracks Down (1937)

When William Reardon, a steel magnate, dies and leaves a strange will. When his spineless and dandified heir and son returns home from living in Paris, he finds "Tons' Walker, a strong and burly steel worker running the company, per his late-father's will request. He also finds that his father's will specifies the Junior will change his name to Bill Hall and work in the family steel mill for a year under the fake name. Walker's job is to make a man out of the son. The son is not overjoyed by this prospect. Neither is Walker.