I will go first with the John Wick 4 Killer poker scene and of course Casino Royale. Not looking for movies with plots completely based on card playing.(like 21) Please post your favourite scenes. Cheers
With all the context behind it I think the last scene of Star Trek: The Next Generation counts
Edit: Added link
Rounders has a young Matt Damon and Edward Norton and is entirely about gamblers making their living as poker players in the late 90’s or early 2000’s.
It’s pretty good
Edit: I just realized you said not entirely about cards, but I still highly recommend the movie. The plot revolves around cards, but it’s also about ambition and knowing when to cut off deadbeat friends
The Hangover Casino scene
The next generation has some poker scenes. There’s one episode where they are stuck in a simulation of a casino and can’t escape.
I still enjoy the “Dell’s poker face” from Only fools and horses…
But probably not what you’re aiming for ;)
The Fizbin scene from Star Trek