thanks, looked it up on Google -- but I still don't recall the "cheating" scene.

But:

"After TV news writer Felix Ungar's, marriage falls apart he becomes depressed and wants to end it all by trying to jumping out a window. But he ends up pulling a muscle in his back. Limping back onto the street he tries to get drunk and ends up hurting his neck. Finally, he stands on a bridge, thinking about jumping into the river. Instead... he finds his way to the weekly poker game in progress at his best friends, Oscar Madison's, apartment. Felix accepts an invitation to live with Oscar, but his hypochondria and cleanliness drives Oscar nuts, and the two men are soon arguing over everything.

"In one of my favorite weekly poker game scenes:

"Oscar Madison: I'm in for a quarter.
Murray: Aren't you going to look at your cards first?
Oscar Madison: What for? I'm gonna bluff anyway. Who gets a Pepsi?
Murray: I get a Pepsi.
Oscar Madison: My friend Murray the policeman gets a warm Pepsi.
Roy: You still didn't fix the refrigerator. It's been two weeks now - no wonder it stinks in here.
Oscar Madison: Temper, temper. If I wanted nagging, I'd go back with my wife. I'm out. Who wants food?
Murray: What do you got?
Oscar Madison: I got, uh, brown sandwiches and, uh, green sandwiches. Which one do you want?
Murray: What's the green?
Oscar Madison: It's either very new cheese or very old meat.
Murray: I'll take the brown.
[Oscar hands Murray a sandwich which Murray starts wolfing down]
Roy: Are you crazy? You're not going to eat that, are you?
Murray: I'm hungry!
Roy: His refrigerator has been out of order for two weeks now. I saw milk standing in there that wasn't even in the bottle!
Oscar Madison: What are you, some kind of health nut? Eat, Murray, eat!"

Robert