Bud Abbott and Lou 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.
This was the first Bud Abbott and Lou Costello feature for Universal to go into production in more than a year, following Costello's recovery from rheumatic fever.
Leading lady Marion Hutton had been the female singer with Glenn Miller and His Orchestra and was the sister of Paramount superstar Betty Hutton.
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.
Universal was so anxious to get a new Bud Abbott and Lou Costello film into theaters that it sped up the production by bringing in a second director, Erle C. Kenton (who directed at least two production numbers, uncredited) and created the climactic chase sequence using footage from Passez muscade (1941). The rushed production schedule made this the most expensive Abbott and Costello film up to that time.