This film is a remake of Honeymoon with a Stranger (1969) starring Janet Leigh.
Margot Kidder played Lois Lane in the live action Superman films from 1978 until 1987. Mike Farrell would later voice Jonathan Kent in the DC Animated Universe.
Mike Farrell's B.J. Hunnicutt on the TV series M*A*S*H (1972), replaced Wayne Rogers's Trapper John, the role that was played by Elliott Gould in the feature M*A*S*H (1970).
Elliot Gould played a similar role but as a journalist who discovers the heart of the matter in the film Capricorn 1.