Trivia: This movie is loosely based on a mystery novel from the 70's.
Trivia: Kevin Williamson wrote this movie before "Scream" (1996), but no company accepted. The popularity of "Scream" helped. The downside was that "I Know What You Did Last Summer" includes horror movie cliches that are discussed in "Scream", making this movie seem somewhat outdated by the time it was released.
Trivia: Max (Johnny Galecki) was killed to beef up the body count. The scene was filmed after principal photography.
