Trivia: At one point, Heather Chandler asks Heather Duke, "Did you have a brain tumor for breakfast?" Ironically and tragically in real life, actress Kim Walker (Heather Chandler) died of a brain tumor in 2001.
Trivia: Veronica Sawyer and Betty Finn's names are a combination of the girls from the 'Archie' comic books, and Mark Twain's characters Tom and Huckleberry.
Trivia: The kitchens used in Heather Chandler's and Heather Duke's houses are the same room, but with different lighting and camera angles.
Trivia: The high school (Westerburg High) is named for Winona's favorite rock singer at that time, Paul Westerburg, of The Replacements.
Trivia: The writer Daniel Waters thought of a few different endings for this movie. In one version, JD would successfully bomb the school, and the students would be shown at a prom in the afterlife. In another ending, Martha (A.K.A. "Dump Truck") would decide that Veronica was just another Heather, and kill Veronica.
Trivia: Daniel Waters (writer) came up with a possible sequel in which Veronica now lives in Washington DC, working for a senator who is an adult Heather. Meryl Streep would play the senator. However, Waters has always been against making a sequel, and only pitched this idea to Winona Ryder for fun. Ryder has talked about a sequel multiple times.
Trivia: After watching "Heathers", actress Tori Spelling suggested to her father, the producer Aaron Spelling, that Shannen Doherty be cast in "Beverly Hills 90210".
Answer: I think it's one of those "This can't be happening, I must be dreaming" moments. Same as when a character pinches themselves in order to wake up, or they tell someone to pinch them. Veronica can hardly believe what she and JD did.