Let it Ride was a hoot, but it wasn't really a gambling movie. "Stuffy, Rat-Bastids!"
The Gambler, with James Caan is tops on my list.
I love the cheese-ball movie, with Kenny Rogers, too. It was not really a gambling movie, either, but I loved the scene when Rogers' character was playing cards on the train with "Doc".
The Dr doesn't want to call him, but the train owner is fronting the money, and thinks Hawks is bluffing, so he calls the bet. Shoving the money into the pot, he says, "Play out the hand....it's my money!"
Hawks states, "Nope............It's my money." As he lays down the straight flush!
Sweet!