Not trying to be a wise guy...but aren't these folks...

Betty and her friends and relatives are obviously NOT Jewish.

The movie is based on the play where the interfaith aspect of the relationship is tackled (whereas in the movie it's downplayed and has to be read "between the lines"). Here's a review of the February 2014 off Broadway revival of Middle of the Night http://www.nytimes.com/2014/03/01/theater/middle-of-the-night-a-paddy- chayefsky-play.html

I was wondering the same thing. C'mon - what kind of garmento is named "Kingsley?"

I'll be honest, I had a hard time with this film in general, despite truly excellent performances from everyone involved and my great love of Marty. I found Jerry self-righteous, self-pitying, and annoying in general and Betty immature and needy. Had he met a similarly immature and needy woman who didn't look as good or closer to his own age (and yeah, we know his late wife had been immature), he wouldn't have bothered, so despite wanting to make an honest woman of her, the attraction was still that of a dirty old man. He wants to be loved by a woman? Please. He wants to be loved by a hot piece of ass and is lucky enough to find one that's willing. We're led to believe that Walter's wife is a harpy but what are the chances that she acts that way because she's sick of her husband making an ass of himself chasing young tail? And then he attempts suicide because he can't get it? Although it wasn't as easy back then, divorce was an option. And then Jerry's self-righteous boast "I happen to be involved with a younger woman myself" after "comforting" Walter's family by telling them their husband and father had been dead for years, presumably because younger women found him the annoying old goat that he was. Horrible. I was so primed to like this and it ended up being a total turnoff.