Well It’s not a movie but the Sopranos has some excellent card game scenes. Especially when Sill loses it and tells the boy to “clean up the cocksucking cheese” that was really funny.
I love the Sopranos and came to it quite late. I’m on series 5 about episode 10. They are running it here in the UK on sky atlantic. Wednesday nights are built around 9PM.
In Goodfellas as well they have a card scene. That is a fine movie and one of my faves of all time. De Niro was fantastic in that and Casino.
To pick a pure gambliong favourite is really difficult as it’s not an overcrowded sector.
It would have to be a film I could watch again and again and so I think “croupier” would be a good choice.