anitalynn:
CrimsonKidCK: [21] "Adam's Rib" (?)
Maybe that's the movie I was thinking of: and not Adam vs. Eve. I'm not sure.
It's about two lawyers, married to each other (Katharine Hepburn and Spencer Tracy), who end up opposing each other in court representing opposing spouses (she the wife and he the husband) in a marital conflict.
They start to personalize their courtroom conflict at home, with Tracy's character giving Hepburn's a sharp slap on her seat (IIRC she was lying prone at the time) that she realizes is motivated by anger over the trial rather than being a typical spousal 'love pat.'
I'm not 100% certain about the ending, but I seem to vaguely recall that both married couples end up reconciling at the conclusion of the film... --C.K.