Continuity mistake: When Mike is in the bath talking to Knish, his right hand moves around a lot. Whenever Mike is seen from behind, his hand is on the marble column next to him, but when he is seen from the front, both his hands are in his coat pockets. Back and forth, through the entire scene.
Rounders (1998)
Ending / spoiler
Starring: Matt Damon, John Malkovich, Edward Norton, Famke Janssen, John Turturro, Martin Landau
After losing his initial stack to John Malkovich, Matt Damon has to play him again in order to pay off the debt Ed Norton owed against his name (who subsequently bailed). After winning enough to pay off the debt, Damon continues playing and beats Malkovich ending up with exactly the same pot he had at the start of the movie.
Pogal
More mistakes in Rounders
Trivia: Johnny Chan was only supposed to be a technical advisor for the writers of the film, but his daughter wanted to meet Matt Damon so they went to the set, and since he was there the writers wrote the casino scene and put Chan in it, that's how he got in the movie.