Teaching Mrs. Tingle — 1999
This is another movie that is highly entertaining despite the fact that it probably didn't need to be made. Katie Holmes and Barry Watson (who you may remember from 7th Heaven) star as high school students who are accused of cheating by their evil teacher, Mrs. Tingle (played by Helen Mirren). They end up going to her house to try to convince her not to expel them, and then one thing leads to another and they knock her unconscious and tie her to her own bed.
Also: amazing soundtrack!