 Irving Thalberg (qv) protested the scene in which  Harpo Marx (qv) frantically mimes to Chico Marx (qv) that  Hackenbush (Groucho Marx (qv)) is in danger. It changed Harpo,  said Thalberg, from a character who DIDNT talk into a character who  couldnt talk. Either way, the gag was used again in  _Night in Casablanca, A (1946)_ (qv) and _Love Happy (1949)_ (qv).