I think this shot, and round, takes place before the pinch ...

Here her glass has more in it, no cigarette yet, and he's being careful with his cup. Dave, I also thought of "Purple Noon" and Messier Delon.

[Messier? Messier than whom? - Dave]

Touche (avec l'accent) deus foix, mon ami...!

I would love to know who Cabin Boy is. I wonder if he’s still alive. If he was around 20-25 in 1960, he would be 83 to 88 today.

I guess if we have to go back to 1960, then I do prefer these two instead of that crusty old Vanderbilt. Spicier comments, too.

Today she's probably in her early 90s and he's in his early 80s, if they're still here. I wonder what their lives were like after this snippet of time in a faraway summer.

Golden lads and girls all must,
As chimney-sweepers, come to dust.
        — Shakespeare, "Cymbeline"

Is that the talented Mr. Ripley I see here, plying his charms?

[It’s 1960, so this would be Alain Delon in “Purple Noon.” - Dave]

I'm inclined to think that of the two, the shady lady would probably have harbored more than her share of lascivious intent, if any had actually existed between them.
Instead of the drink she holds, a "Yellow Bird" would have been the perfect cocktail accompaniment to her wardrobe. Recipe calls for a fair amount of alcohol, a couple of them would have been a start in helping to dispel any pesky inhibitions that might have been lingering.