Office Space

Brief but pretty accurately portrayed progressive relaxation and/or hypnosis (There is some ambiguity.) seem to produce positive life changing results (in only one session!) for the protagonist. Another character abandons suicide attempt by CO from car exhaust when his wife finds him in the garage with the motor running.

Programmer Peter tells his programmer coworkers Sam and Michael, “I’m gonna see this occupational hypnotherapist with Anne.”
Michael: ”Dude, an occupational hypnotherapist?”
”Look, why don’t you just tell Anne that you’re not into hypnosis...?”
Sam: “Peter, she’s anorexic.”
Michael: ”Well I don’t think any occupational hypnotherapist is gonna help you solve any of your problems.” (0:09)

Sign in parking lot: “Hypnotherapy... Anxiety - Depression... Smoking...”
Peter talks to hypnotherapist Dr. Swanson who begins progressive relaxation: “Your worries, cares and inhibitions will be gone.” (0:20)

By telephone his girlfriend Anne tells Peter, “... and don’t blame this on hypnosis either...” (0:25)

Peter reads waitress Joanna’s button: “We’re not in Kansas anymore.” (0:30)

Michael tells Peter, “They did it in Superman III.” (0:47)

Peter tells Michael, “I don’t know what happened to me at that hypnotherapist.” (0:48)

Michael tells Sam, “It’s like Superman III.”
Sam: “Superman III...” (0:50)

Their co worker Drew tells the others, referring to co worker Tom, “Last week, right after he found out getting laid off he goes home and tries to kill himself by running the car in the garage.”
”... he gets slammed big time by a drunk driver.” (0:53)

Tom tells Peter, “I know how you get depressed about your job and all...” (1:00)

Michael tells Peter, “I think coke dealers do it.”
Peter: ”Alright, do we know any coke dealers?”
Michael: “My cousin’s a cokehead.” (1:09)

Peter tells Michael and Sam, “Alright, nobody panic.”
When Peter opens the door, magazine salesman Steve tells him, “I used to be addicted to crack, but now I’m off and trying to stay clean.”
Michael: “You used to be addicted to crack?”
Steve: “All that stuff about being a crackhead...” (1:11)

Ex-collator Milton: “I could put strychnine in the guacamole.” (1:23)