This is the second of four films star Tony Curtis and director Blake Edwards made together. In order, they are: Mister Cory (1957), The Perfect Furlough (1958), Operation Petticoat (1959), and The Great Race (1965).
This film is one of four films that Tony Curtis made in 1958. The other three are The Vikings (also with Janet Leigh, as well as Kirk Douglas, Ernest Borgnine), The Defiant Ones (with Sidney Poitier), and Kings Go Forth (with Frank Sinatra and Natalie Wood).
This is one of three films Janet Leigh made in 1958. The other two are Touch of Evil (with Charlton Heston, Orson Welles, and Marlene Dietrich), as well as The Vikings (also with Tony Curtis, as well as Ernest Borgnine and Kirk Douglas).
This is the fourth of five films husband and wife Tony Curtis and Janet Leigh starred in. In chronological order, they are as follows: Houdini (1953), The Black Shield of Falworth (1954), The Vikings (1958), The Perfect Furlough (1958), and Who Was That Lady? (1960).
Upon Tony Curtis and Janet Leigh starring in their first film together, Houdini (1953), there was a controversy who would get top billing. Janet Leigh had more seniority, as she made her feature film debut in 1947, while Tony Curtis (who had played bit parts and extras) finally made his in 1951. However, Leigh said that she would take second billing to Curtis in any picture they made together. Hence the reason Curtis gets billing over Leigh in this film.