Three members of the original Keystone Kops of silent films worked on the picture: Hank Mann, Harold Goodwin and Heinie Conklin. This is the 13th "Keystone Kops" film.
When Willie (Lou Costello) goes to the theatre, the pretty lady in the box office is actually Costello's real-life daughter Carole Costello. She was made up to look much older than her real age.
After the film was completed, "Universal-International" wanted to rename it "Abbott and Costello in the Stunt Men", because they did not consider the Keystone Kops to be relevant anymore. However, in October 1954 the studio relented and agreed to use the "Keystone Kops" name.
After arriving in Hollywood, Willie is put to work as a stuntman. Lou Costello's first job in Hollywood was also as a stuntman.
When Lou Costello arrives at Thomas A. Edison's Black Maria studio in West Orange, NJ, and finds he has been duped into buying it by Fred Clark, his new studio sign gets thrown into a pile representing the others who were defrauded into thinking they were buying a working movie studio. Among the discarded signs is "Grant Productions", an in-joke on the name of long-time A&C collaborator and writer John Grant, who received credit on 31 of their films as well as their TV work.