I have alot of faves but here are some:
Trading Places
Billy Ray Valentine(Eddie Murphy):When I was growing up, if we wanted a Jacuzzi, we had to fart in the tub.
Fletch
Doc: So where do you know Alan from?
Fletch(Chevy Chase): We play tennis together at the club.
Doc: Really. The California Racquet Club?
Fletch(Chevy Chase):Yes.
Doc: That's my club too. I don't remember seeing you there.
Fletch(Chevy Chase):Well, I haven't played in a while because of these kidney pains.
Doc: Right. Now, how long have you been having these pains, Mr. Barber?
Fletch(Chevy Chase):That's Babar.
Doc: Two bs?
Fletch(Chevy Chase):One. B-A-B-A-R.
Doc: That's two.
Fletch(Chevy Chase): Yeah, but not right next to each other. I thought that's what you meant.
Doc: Isn't there a children's book about an elephant named Babar?
Fletch(Chevy Chase): I don't know. I don't have any.
Doc: No children?
Fletch(Chevy Chase): No, elephant books.
Ferris Bueller
Ed Rooney(H.S. Principal): I don't trust this kid any further than I can throw him.
Ed’s Secretary: Well, with your bad knee Ed, you shouldn't throw anybody... Its true.
Ed Rooney(H.S. Principal): What is so dangerous about a character like Ferris Bueller is he gives good kids bad ideas.
Ed’s Secretary :Mmm-hmm.
Ed Rooney(H.S. Principal): Last thing I need at this point in my career is fifteen hundred Ferris Bueller disciples running around these halls. He jeopardizes my ability to effectivley govern this student body.
Ed’s Secretary :Well, makes you look like an ass is what he does, Ed.
Willie Wonka and the Chocolate Factory
Mr. Turkentine(Charley’s teacher): I've just decided to switch our Friday schedule to Monday, which means that the test we take each Friday on what we learned during the week will now take place on Monday before we've learned it. But since today is Tuesday, it doesn't matter in the slightest. Pencils ready!!!
Willie Wonka(Gene Wilder): Candy is dandy, but liquor is quicker.
A Christmas Story:
Ralphie’s Dad reads the box with the prize that he won
Ralphie’s Dad: Fra-gee-lay. That must be Italian.
Ralphie’s Mom: Uh, I think that says FRAGILE, dear.
Ralphie’s Dad: Oh, yeah.
Planes Trains and Automobiles:
Car Rental Agent: I really don't care for the way you're speaking to me.
Neal(Steve Martin):And I really don't care for the way your company left me in the middle of fu--ing nowhere with fu--ing keys to a fu--ing car that isn't fu--ing there. And I really didn't care to fu--ing walk down a fu--ing highway and across a fu--ing runway to get back here to have you smile at my fu--ing face. I want a fu--ing car RIGHT FU--ING NOW!
Bridges of Madison County:
Robert Kincaid(Eastwood) speaking to Francesca: This kind of certainty comes but once in a lifetime.