Trivia: Helen Mirren has given different reasons for taking the part of Mrs. Tingle. She was reportedly intrigued by the devilish role because it was unlike anything else she had ever played, and she enjoyed how the film showed the turbulence of adolescence. She also quipped that she got paid a "shitload of money" and that it was an easy job because she spend most of the film tied to a bed in a comfy nightgown making catty comments.
Trivia: In the original ending, Mrs. Tingle didn't go to jail, and eventually made a truce with the students who were holding her captive, with everyone going free. This was changed in reshoots, as audiences felt she was so unlikeable, she needed to be "punished."
Trivia: The movie was originally shot as an R-rated movie, but was cut down to PG-13 before release. It's most notable in the scene where Jo-Lynn re-enacts scenes from "The Exorcist." The actress had to re-dub herself screaming "F*** me!" with "Take me!" over and over again.
Trivia: The film was originally titled "Killing Mrs. Tingle" and was set to premiere earlier. After the Columbine Shooting, the film was retitled "Teaching Mrs. Tingle" due to fears that it would feel too exploitive following the tragedy. Its release date was also shifted back slightly.
