The nick-names of the lead female character played by Goldie Hawn) were "Bluebird" and "The Duchess of Swansbury". Hawn's character's real name is "Amanda Quaid" in the end credits, yet this name is never spoken at all during the film.
Second of three movies actor George Segal made with director Melvin Frank. The first was A Touch of Class (1973) whilst the third one was Lost and Found (1979). This movie was the only one that didn't co-star Glenda Jackson.
Matte paintings were used to create the period look of San Francisco and Salt Lake City.