According to the '80s Rewind' website, apparently, "at one point during filming, [actor] Rob Lowe allegedly threatened to quit the movie unless he was allowed to appear in a scene totally naked in a bathtub full of baked beans. The director [Lewis John Carlino] refused, but did manage to finally lure Lowe back to the set".
The picture has often been compared with and likened to The Graduate (1967). Of Class (1983), the following commented in relation to The Graduate (1967): 'Rating the Movies' said that the movie was a "take-off of The Graduate (1967); 'Halliwells' said the film was a "travesty of The Graduate (1967)"; film critic 'Roger Ebert said that the picture was a "prep-school retread of The Graduate (1967)"; whilst trade paper 'Variety' said the film "throw[s] in aspects of The Graduate (1967)"; and 'Movie '83' magazine (Australia) said that the movie was an "80s version of The Graduate (1967)".
Second consecutive back-to-back movie where actress Jacqueline Bisset has romantic liaisons with a younger man. The earlier movie was George Cukor's Rich and Famous (1981), where Bisset actually had passionate encounters with two younger men.
The birth date of Jonathan (Andrew McCarthy) on his student card states 29th November 1964. The day and month, November 29, is McCarthy's actual birthday in real life. Only the years are different, Jonathan is born in 1964 whereas McCarthy was born in 1962.
In the scene where Skip Burroughs (Rob Lowe) is being questioned by Balaban, Balaban asks him if he's related to the same Burroughs that's on the board of AT&T. Skip confirms that his father (played by veteran actor Cliff Robertson) is indeed on AT&T's board...which coincidentally has a real-life connection...Cliff Robertson was an AT&T pitch-man for several years in their 1980s television commercials and was known as "Mr. AT&T" at the time.
The movie's very prominent tagline mentioned the name of Jonathan, Andrew McCarthy's character, by stating, "The good news is, Jonathan's having his first affair. The bad news is, she's his roommate's mother." McCarthy would again play a character called Jonathan in 1987's Mannequin (1987) and in the 1995 tele-movie The Courtyard (1995).