Watching over them in the background

The scene is a high-school history classroom near the beginning of "Fat Like Me." Mr. DeMartino is ranting because no one will tell him the causes of the Great Depression. Daria and Jane are betting on which epithet the teacher will call the class. "Say it," mutters Jane. "Starts with an M," says Daria.

For less than a second, we get a closeup of Jane. On the wall behind her is a poster shown earlier at a great distance. Who is the poster of?

Say it. Starts with an M.

Have a great day on Monday!