I seem to recall Maverick(1994) having a good card game as a central plot element, which takes place on a river boat casino. It’s also just a really fun movie about three competing con artists (played by James Garner, Mel Gibson, and Jodie Foster).

It’s been a few years since I’ve seen it, and it’s set in the old west, so sorry if it has any racisms I forgot about!

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

Well Casino Royale comes instantly to mind

Also the oceans series.

I fact I’ve noticed many heist movies have one. Not just oceans 11 etc where the heist in based at a casino. I could talk about why for an hour but I’ll spare you.

I believe rififi starts this way

I still enjoy the “Dell’s poker face” from Only fools and horses…

But probably not what you’re aiming for ;)

https://youtu.be/C_fHScmyWTA?

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.

Terence Hill has many awesome card playing scenes in his movies like this one. No idea what the English or Italian title is.

The Hangover Casino scene