“It kill your brain cells, son. It kill your brain cells! Now when you're destroying your brain cells, your doing the same thing as killing yourself. You just doing it slower! Now, I say, if wanna kill yourself, don't fuck around with it. Go on and do it expeditiously!”

Morgan Freeman - Principal Joe Clark

“- Guy on TV: This is your brain. This is your brain on drugs. Questions?
- Freddy Krueger: Yeah! What are you on? Looks like a frying pan and some eggs to me.”

Johnny Depp - Guy on TV
Robert Englund - Freddy Krueger

“A bit of morning cocaine always helps the brain.”
John C. Reilly - Dr. Watson

“- Mysterious Woman: This is your brain.
- Toddster: Dude, my brain!
- Mysterious Woman: And this is your brain on drugs!”

Sheri Wenden - Mysterious Woman
Gary Hrbek - Toddster

“- Billy Mack Black: Hey, man, you sure you don't want any of this?
- Watty Watts: I don't think it's such a good idea for you to be doin' that shit before a job.
- Billy Mack Black: Cleans out my brain.
- Watty Watts: Turns your brain into chewing gum.”

Rory Cochrane - Billy Mack Black
Gil Bellows - Watty Watts