Insane Lovers shares a number of cast credits with Small Change (1978) and Eighteen and Anxious (1978), with most of the credits applying only to the latter.
The magazine that the sex show proprietor reads is the April 1978 issue of Hustler.
Actress Arcadia Lake uses the alias 'Michele Lake' in this film. This alias is a combination of her stage name, Arcadia Lake, and her real name, Michelle Carpenter. Filmmakers later made the mistake of assuming 'Michele Lake' was the alias (in Insane Desires) for actress 'Marcia Minor' (instead of the correct 'Micki Manos'). This understandable error shows up in films like Honeymoon Haven and The Pink Ladies where the name 'Michele Lake' is thrown out there in the on-screen credits. Arcadia Lake is not present in either film while Marcia Minor is in both.