Film debut of Mary Tyler Moore. NOTE: She (uncredited) is part of the last couple entering the next-to-last ambulance to go to the ball. This occurs just a few minutes prior to the end of the movie. On the Call Sheet she's listed as "Mary Moore", which was her acting name at that time. It was her debut.
The actress who plays Skibo's date, Marilyn Hanold, was 18 when she made this picture. Two years later she was Playboy's Playmate of the Month, in June 1959.
The first of four films in which Jack Lemmon and Ernie Kovacs' appeared. The others were Bell Book and Candle (1958), It Happened to Jane (1959), and Pepe (1960).
Based on an unproduced play by Arthur Carter, the screenplay owes a lot to future director Blake Edwards and famous Broadway director Jed Harris. Filmed at Columbia Pictures in 1957, the last year of Harry Cohn's life.