Bad Teacher, starring Cameron Diaz, tells the story of an alcoholic, drug abusing educator whose plans to marry into money fall apart when she is dumped by her fiancé. The idea of a money-grubbing, drug-abusing teacher might seem like a novel one, but the concept is nothing new. While the film could end up as the funniest of the bunch, when it comes to bad teachers, there is certainly a lot of competition. In honor of Bad Teacher's release this Friday, we give you the nine baddest teacher movie moments.

"Economics Teacher" played by Ben Stein - Ferris Bueller's Day Off (1986)

Everyone remembers the famous "Bueller, Bueller, Bueller," line that made Ben Stein famous. But in his role as high school economics teacher, Stein's actual lesson managed to be even more mundane than his repetitious roll call.

"Sam Lombardo" played by Matt Dillon - Wild Things (1998)

Sam Lombardo isn't a teacher, but rather a guidance counselor. Even so, I felt the need to include him. Why? Because not only is he sleeping with two of his students, he's also taking part in an elaborate fraud worth millions of dollars. The worst moment has to be when he beds both of the girls at the same time. I mean that from a strictly professional point of view. As far as the movie is concerned, it's probably the most entertaining part, followed closely by the pool scene and any scene with Bill Murray.

"Dan Dunne" played by Ryan Gosling - Half Nelson (2006)

At first glance, the story of a teacher working to improve the lives of inner-city school kids sounds like an uplifting story. But throw in some rampant crack use on school property (in the locker room after the game), and you've got yourself a prett bad teacher.

"Phil" played by Bradley Cooper - The Hangover (2009)

Phil from The Hangover was a pretty smarmy character. But Bradly Cooper managed to let some charm shine through, which is a good thing. After all, how else could the audience possibly sympathize with a character who steals the his students' field trip fund to blow in Vegas?

"Mr. Lawson" played by Eric Stoltz - Rules of Attraction (2002)

One thing a teacher should never do is have sex with a student. Granted, when you're teaching at the college level, things aren't so cut and dry, since the students are considered adults. But since Mr. Lawson is married with children, and uses drugs to seduce his subjects, we're going to go ahead and add him to the bad teacher list.

"Detective John Kimble" played by Arnold Schwarzenegger - Kindergarten Cop (1990)

When detective John Kimble goes undercover as a local kindergarten teacher, it's a recipe for disaster. After all, a movie about an undercover cop who makes a good substitute teacher would probably suck. At any rate, the worst bad-teacher moment in this film comes when Arnie screams "shut up" at a classroom full of five-year olds. That might not sound so bad, but a scream coming from a former Mr. Universe is truly terrifying.

"Jim McAllister" played by Matthew Broderick - Election (1999)

The road to hell is paved with good intentions. That about sums up the character of Jim McAllister. In his best role since Ferris Bueller, Matthew Broderick plays a straight-laced teacher whose world is turned upside while running a school election. Eventually, he is caught rigging the contest, and forced to resign.

"Professor Snape" played by Alan Rickman - Harry Potter and the Order of the Phoenix (2007)

In Harry Potter and the Order of the Phoenix, Dumbledore asks Professor Snape to give Harry occlumency lessons to protect his mind from Lord Voldemort. Snape in turn betrays Dumbledore's trust and tortures Harry with painful memories when he should be fortifying his defenses. Dick move.

The Faculty (1998)

All of the teachers on this list are bad, in one way or another. But the teachers from The Faculty are the worst of the bunch. Why? Because not only are they bad teachers, they're also killer aliens from outer space. It is impressive to see Salma Hayek, Elijah Wood, Jon Stewart, Robert Patrick and Mr. Kruger from "Seinfeld" in the same movie, but we're still going to count the entire film as one bad moment.