Who's Who? (1930)

Harry Lang and his partner, Bernice Haley, squeeze ten minutes out of a routine from their vaudeville repertoire that has him explaining to her... Haley: "What's his name?" Lang: "That's it." Haley: "Well, what is it?" Lang: "That's it...Watt." Sorry Abbott and Costello fans, they didn't invent the routine. Neither did Haley and Lang.