Co-stars Elizabeth Montgomery and Robert Foxworth began a relationship around the time this movie was filmed, living together for almost 20 years before marrying in 1993.
When Etta Place (Elizabeth Montgomery) and Jack Maddox (Robert Foxworth) reach the abandoned schoolhouse where Etta taught, she sees an old bicycle leaning against the railing. If you listen to the music here, you can hear "Raindrops Keep Falling On My Head" playing slowly. This was the theme song to "Butch Cassidy and the Sundance Kid" (1969) and played extensively throughout the scene where Etta and Butch ride this bike.