Cameron Diaz's dark comedy "Bad Teacher" casts her as a high school teacher who just happens to have movie star good looks. But what if celebs actually staffed a high school? What might they teach?
Teacher: Mr. Hamm
Our reasoning: We're pretty sure Jon Hamm could capture the attention of almost all the drama kids. Besides, Hamm actually once taught high school drama before he made the world love/hate him as Don Draper.