Zeppo Marx that "Herbie" was tagged with the name "Zippo" because he liked to do chinups and acrobatics, as the chimp did in its act. The youngest brother objected to this nickname, and it was altered to "Zeppo". In a TV Interview, Zeppo said that Zep is Italian-American slang for baby and as Zeppo was the youngest or baby Marx Brother he was called Zeppo. Zeppo replaced brother Gummo in the Marx Brothers stage act when the latter joined the army in 1918. Zeppo remained with the team and appeared in their successes in vaudeville, on Broadway and the first five Marx
The Time of Their Lives onscreen partnership was reportedly due to personal problems and tensions that briefly broke up their act in 1945.) The film is also noted for having a somewhat darker and more serious tone than most films featuring the duo. Abbott learned to drive a car for this film. According to his son, Bud Abbott, Jr., this was the only time in his life he ever drove an automobile. A few weeks into filming, Costello wanted to switch roles with Abbott. He refused to work, but director Charles Barton waited him out. Costello eventually returned to work and said nothing more about