These two movies have some of the funniest dialogue in movie history (the first more than the second, of course). I'll add more as the thread goes along. I'm going to start with one from each:
Airplane!
(Over the PA system)
Vernon: There's just no stopping in a white zone!
Betty: Oh, really, Vernon? Why pretend? We both know perfectly well what you're talking about. You want me to have an abortion.
Vernon: It's really the only sensible thing to do if it's done properly. Therapeutically, there's no danger at all.
Airplane II
ROK: Voice Interface.
Elaine: There's an overheat in the core; please analyze problem.
ROK: There is not apparent overheat.
Elaine: Yes, there is, ROK. We read a core overheat repeat analysis.
ROK: Analysis confirmed; all systems compute positive.
Elaine: Well, not from where I'm sitting, they don't.
ROK: Look, Elaine, cut the "not where I'm sitting" shit. It must be a human error.

Airplane!
(Over the PA system)
Vernon: There's just no stopping in a white zone!
Betty: Oh, really, Vernon? Why pretend? We both know perfectly well what you're talking about. You want me to have an abortion.
Vernon: It's really the only sensible thing to do if it's done properly. Therapeutically, there's no danger at all.
Airplane II
ROK: Voice Interface.
Elaine: There's an overheat in the core; please analyze problem.
ROK: There is not apparent overheat.
Elaine: Yes, there is, ROK. We read a core overheat repeat analysis.
ROK: Analysis confirmed; all systems compute positive.
Elaine: Well, not from where I'm sitting, they don't.
ROK: Look, Elaine, cut the "not where I'm sitting" shit. It must be a human error.
