Trivia: The last assignment Christopher Walken gives his students before his accident is to read about the headless demon in the story "The Legend of Sleepy Hollow." Years later he played the Headless Horseman in the movie "Sleepy Hollow."
Trivia: During Johnny's visions, his involuntary jerks were achieved by David Cronenberg firing a .357 Magnum revolver loaded with blanks from behind the camera.
Trivia: Ken Pogue, who plays Greg Stillson's future Vice President, made an appearance in a 2003 episode of the TV series "The Dead Zone"
Trivia: While it's difficult, in hindsight, to imagine anyone other than Christopher Walken starring in this film, author Stephen King wanted comic Bill Murray to play the lead role of Johnny the reluctant clairvoyant.
Trivia: Jackie Burroughs (born 1939) was only four years older than Christopher Walken (born 1943), who plays her son.