2. Robin Harris and John Witherspoon improvised most of their lines.
3. House Party was originally written for DJ Jazzy Jeff and the Fresh Prince, a.k.a. DJ Jazzy Jeff and Will Smith. This happened because New Line Cinema won a lawsuit against them due to their song A Nightmare on My Street and one of the conditions were that they had to appear in a New Line film. Director Reginald Hudlin refused to cast them in the movie based on that term.
4. This was final film released before the death of Robin Harris, who died nine days after the movie was released. However, it was not his last one as he appeared in Mo' Better Blues (1990), which was released approximately five months after he died.
5. House Party is considered a cult classic, highlighting the "Golden Age of Hip-Hop" music when it's culture was centered around parties, fun, and consensual affairs rather than the drugs, violence, and misogyny that came after its predominance in the early to mid nineties.
6. The film was based on a short film that served as the thesis film for director Reginald Hudlin for his Harvard University degree.
7. Near the end of the movie, Play suggest they go to his house and watch Krush Groove (1985) and Beat Street (1984). Both Paul Anthony and B-Fine were in the former.
8. The movie was filmed at Plays real life home in Los Angeles, California.
9. Anthony Johnson, who plays the guy with short jheri curl hair at the party, returned in House Party 3 (1994) as Butcher.
10. When Pop shows up at the party looking for his son, he says the line 'test tube baby' - used in Robin Harris' real-life stand up comedy performances.
11. John Witherspoon and Bebe Drake also played husband and wife in the movie Boomerang released in 1992. And also appeared onscreen again but this time as enemies in Friday After Next! She played Damon's mother.
12. The license plate on the car that Play drives throughout the movie is GZA 932. The GZA is a member of the Wu-Tang Clan, and on fellow Wu-Tang member Ol' Dirty Bastard's debut album "Return to the 36 Chambers" one song contains the phrase "Chamber number nine verse thirty-two", although it is unknown whether this is just a coincidence.
13. Warrington Hudlin (Producer): one of the two burglars that are chased by the dog.
14. Reginald Hudlin (Director/Writer): one of the two burglars that are chased by the dog.
15. When the production manager (listed elsewhere under his own name) disappeared during the making of the film, costing the production several thousand dollars, he was credited under the name "Ozus Munny" as retribution for his irresponsibility.