The bookstore has Thanksgiving titles on display and the newspaper that Sherry reads has "Thanksgiving Greetings" indicating that filming took place in the fall of 1981.
The gumball telephone seen in MaryLou's house was manufactured by Paul Nelson Industries of Englewood Colorado who manufactured collectible telephones in the 1970s and 80s.
At the time of the film's release, Honey Wilder was 32 and Eric Edwards was 37. Meanwhile, their story-line "son & daughter" were depicted by 28 year old Kevin James and Dorothy Lemay.
The original poster, VHS cover, and trade advertisements utilized a picture of supporting actress Tammy (billed as "Bambi") and lead Kevin James, rather than leading lady Dorothy Lemay and Kevin James. This was due to the belief that, while Tammy didn't play the sister role in the film, she had a more marketable "look" for promotional purposes.