The UK video version was cut by 30 secs for a PG rating by the BBFC to edit a possibly imitable scene where a key is pushed out of a door lock using a wire coat-hanger.
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). Does this count as six degrees of separation.
This film is a remake of Honeymoon with a Stranger (1969) starring Janet Leigh.