Doris Day has written that her close friendship with co-star Louis Jourdan angered her jealous producer husband Martin Melcher, mirroring the character relationships in the film.
Doris Day did not want to do this film. The character of Lyle Benton was painfully reminiscent of her first two husbands, Al Jorden and George Weidler.
While making this film on location, Doris Day repeatedly complained to her husband Martin Melcher, whose first film as a producer this was, that she felt ill and needed a rest. He insisted that she adhere to her Christian Science beliefs--and the film's shooting schedule--and "have faith" that whatever was ailing her would pass. Once shooting was completed, Day consulted her doctor in Beverly Hills, who discovered a large ovarian tumor which required her to have a hysterectomy.
While on location for this film, Doris Day fell in love with the Carmel-by-the-Sea/Pebble Beach region near Monterey on the Northern California coast south of San Francisco. She retired to Carmel in the late 1970s and lived there until her death in 2019.
This is one of the few films in which Doris Day is seen smoking cigarettes. After she survived a cancer scare while filming this movie, she gave up the habit on her doctors' recommendation.