Trivia: The film's "Silver Shamrock" commercial theme has become something of an infamous meme, due to it being very catchy and a bit of an "earworm." The song is set to the tune of "London Bridge is Falling Down," which was chosen due to it being in the public domain, and thus free to use.
Trivia: Spoilers: Originally, the credits were going to be accompanied by the sound of wailing cries of children, implying that Cochran's plan worked. However, it was later decided to instead simply play the movie's theme over the credits to leave the ending more ambiguous, so that the audience will never know for sure whether or not Challis stopped Cochran's plans.
Trivia: Many people complain about this being the only "Halloween" film not featuring the character Michael Myers. However, series creator John Carpenter never intended for the series to revolve around Myers. After the conclusion of "Halloween II," Carpenter envisioned the "Halloween" series as becoming an anthology, with a new film released every year-or-so in October, and each film telling a different story related to the holiday. Unfortunately for Carpenter, audiences had come to associate the series exclusively with the Michael Myers character. So the producers quietly dropped his anthology idea and brought Myers back in the next film, making this movie the "odd one out" in the franchise.