There are many admirable and enjoyable scenes in this movie, but the one that stopped me in my tracks and made me start typing is this one:
Victor: I don't like divorce. Once more, I don't think adultery sufficient grounds for it.
Hilary: Oh, what a masculine attitude.
Victor: I don’t think marriage is just a liason to be terminated when the sexual side of it gets boring or irksome to either party.
Hilary: Oh, it’s never been boring or irksome; not for me it hasn’t! And don’t talk about “either party”; it makes it sound like a contract.
Victor: And if people make promises, what else can it be but a contract? You promised to be faithful. Well you’ve broken that one; must I respond by breaking one of mine? “To have and to hold, from this day forth; for better, for worse.” This moment in our lives must obviously come under the heading “for worse.” And the popular measure taken nowa days is to say, “well, the ‘better’ part of it is over, and here we are with the worse so goodbye, my dear, it was fun while it lasted. You take your boyfriend, I’ll take my freedom, and I’ll be on the Riviera before you.” Well, I think that’s wrong. If your mistress is unfaithful, she should be discarded. If your wife is, she should be befriended.
Hilary: Befriended? Meaning helped and patronized?
Victor: Meaning beloved and cherished.
-- Cary Grant and Deborah Kerr in The Grass is Greener