According to the Paramount Collection at the AMPAS Library the film was produced at the cost of $1,701,083, which was $103,083 over its allotted budget. Because of the budget overruns, a planned "The Bat Lady" musical production number was never filmed.
According to TMC Jerry Lewis saw Shirley MacLaine on stage in "The Pajama Game", where she was understudy for Carol Haney, and convinced the producer to use her in this film, thereby launching her career.
This was the first film Shirley Maclaine did with Dean Martin . They eventually appeared together again in Some Came Running (1958) , Ocean's Eleven (1960), Career (1959), All in a Night's Work (1961) , What a Way to Go! (1964) and finally in Cannonball Run II (1984) which also include one of their co-star in this film, Jack Elam.
When the Secret Service men are watching Rick Todd from a window across the street one of them says it's hard to see from this rear window. This is a witty reference to the Jimmy Stewart / Grace Kelly movie "Rear Window" directed by Alfred Hitchcock wherein Stewart plays a photographer laid up with a broken leg who watches his neighbors through a camera from his window.