Unlike in poker tournaments, the chips involved represent real money. If a player loses his or her initial buy-in, that player may rebuy a minimum of $50,000.
However, some details, such as the specific hands and betting sequences, are exaggerated for entertainment purposes. Overall, the game provides a good portrayal of the tension and skill involved in high-stakes poker, but it is important to remember that it is a work of fiction. No, the game is not remotely realistic.