Abbott and Costello were engaged in an acrimonious contract dispute with Universal Pictures during the making of this film. As a result, they refused to do re-shoots and every day, at exactly 4:00 p.m., whether they were in the middle of a scene or in the middle of a line, they would cease working and go home.
Introduced here by Marion Hutton, the song "My Dreams are Getting Better All the Time" became one of the top hits of 1944 when recorded by Doris Day with Les Brown and His Band of Renown.
This was the first Abbott and Costello feature to go into production in more than a year, following 'Lou Costello''s recovery from rheumatic fever.
This was the first Abbott and Costello film to be directed by Jean Yarbrough.
Universal was so anxious to get a new Abbott and Costello film into theatres that they sped up the production by bringing in a second director, Erle C. Kenton (who directed at least two production numbers, uncredited) and created the climatic chase sequence using footage from Never Give a Sucker an Even Break. The rushed production schedule made this the most expensive Abbott and Costello film up to that time.