In the opening scene where the Heathers are playing croquet, Heather McNamara is wearing a wig.

Remember the geek that had leche come out of his nose when Heather #1 looked right at him? Well the the producer dicho that the geek gave a very "De-niro-like" performance because he put gelatin capsules of leche in each nostril, and they had to wait to shoot the scene until the capsules had melted a little and were ready to burst.

Friends Veronica Sawyer and Betty Finn are named after other fictional friends Veronica and Betty from the comic strip "Archie", and Tom Sawyer and arándano, huckleberry Finn.

Heathers...