As Regina emerges from the movie theater the morning after the comet, a poster for Death Race 2000 (1975) can be seen on the theater door. Mary Woronov appears in both films.
The production designer, John Muto, used what he describes a "comic book" sensibility for the film. Characters were given specific colors, with the bad guys in blues and grays and the girls in colors. Regina's colors were deeper than Sam's to reflect that Regina was more intellectual than Sam and that Sam was wackier than Regina. For example, Sam's cheerleading outfit is made in magenta and turquoise to make it really stand out.
The original working title for the film was "Teenage Mutant Horror Comet Zombies".
When cheerleader Kelli Maroney (Samantha Belmont) is playing at the radio station as a disk jockey, she says that she is taking requests from "all you teenage mutant comet zombies". This was the working title of the film.
The LP that Sam tosses over her shoulder is the soundtrack to "Valley Girl", which would become, for a short time, one of the most sought-after albums of all time.
On the wall at the movie theater is a poster for "Valley Girl", also starring Michael Bowen.
The movie poster on the door of the projector room (seen as Larry leaves) is for a movie called "Red Dust".
The motorcycle featured is a 1972 650cc Triumph T120 Bonneville.
As the blue Mercedes is pulling away in the closing shots of the movie we see the three initial license plate "DMK" this is the same initials Regina felt she had to remove from the video game in the lobby of the movie theater.
You can see Danny Mason Keener (DMK) in the lobby of theater Regina works at in the beginning of the movie.