The college experience includes interaction with professors, and there's nothing like a stimulating and emotional teacher to get your brain going and really thinking about the subject matter. The most memorable professors often have an edge to their personality, and those that make movies in Hollywood realize that this is fertile ground for making successful movies. Many of these instructors often start out as meek when they are introduced and grow deranged as the movie proceeds. Here are the six craziest movie professors in big-screen history.

"Back To School", (1986), Professor Terguson. When Thornton Melon (Rodney Dangerfield) decides to go back to college, he takes a Contemporary American History class taught by Professor Terguson (Sam Kinison). Melon's son Jason explains that Professor Terguson is committed to teaching his class. "In fact, I think he was committed," Jason says as his dad walks into the classroom. When the class discussion turns to the end of the Vietnam War, Terguson goes off on a young woman in the class who explains the reason the war ended with a textbook-type response. Terguson rants and rages as he explains that he was there, "Up to my knees in rice patties, going up against Charlie..."

"The Nutty Professor", (1996), Professor Sherman Klump. Klump (Eddie Murphy) is an obese professor who is on the verge of a breakthrough with a chemical that will change DNA structure, allowing overweight people to change their body structure. While the experimentation process is not yet complete, Klump is so upset about his loneliness and his life that he takes a dose of the formula to see if it will help him. An amazing and immediate change results as Klump is transformed into cool, suave and thin Buddy Love. After the transformation, Love is able to win a girlfriend and get revenge on an insult comedian who had previously embarrassed Professor Klump.

"Dead Poets Society", (1989), Professor John Keating. Instead of sticking to the standard curriculum when he takes a job at an expensive New England private school, English professor John Keating  (Robin Williams) encourages his students to think for themselves and go off in their own direction. He tells them about the Dead Poets Society, which basically brings to life the poetry of some of the classic poets of the past. Keating is rebuked by the school's leadership, but he changes his students' lives as a result of his unconventional teaching methods.

"Indiana Jones and the Temple of Doom", (1984), Professor Indiana Jones. In the 1930s, professor Indiana Jones teaches archeology, but there's a lot more to his life than dry lectures. He travels to a small village in India where the children have been taken away after a precious stone was stolen. Jones goes on a mission to get that stone back, and he must overcome the obstacles within the Temple of Doom.

"Animal House", (1978), Dave Jennings. "Animal House" is the classic story of the members of the Delta House fraternity at Faber College. John Blutarsky (John Belushi) is an impressive drinker, Eric Stratton (Tim Matheson) schemes to get any girl he wants, and Kent Dorfman (Stephen Furst) is the fraternity's awkward pledge. Professor Jennings is the most unenthusiastic and honest teacher at the school, letting students know that the future offers them little besides unfulfilled promises.

"The Absent-Minded Professor", (1961), Professor Ned Brainard. Professor Brainard (Fred MacMurray) can't seem to get out of his own way. He's well-meaning and likable, but his mistakes are getting out of hand. However, one of those mistakes leads to the invention of flying rubber-known as "flubber"-and Brainard knows this remarkable material is extremely valuable, but he only person interested in the material is a corrupt businessman.