A gazillion online poker handles were paeans to the film (“TeddyKGB” and “MikeMcD” and it’s variants so common. Poker aficionados can fill many hours discussing pros and cons of the movie.
It was a portrait of friendship and striving, a hero’s journey of someone choosing a character-rich demimonde.
This was for a while a movie that had a pretty big influence on my leisure time, and arguably my life, given how much time I’d subsequently spend in the game in 2002-2005. TheRinger has a great oral history of Rounders.