The Cincinnati Kid

Eric Stoner, nicknamed "The Kid," is an up-and-coming poker player in New Orleans. He hears that Lancey Howard, a longtime master of the game nicknamed "The Man," is in town, and sees it as his chance to finally become the Man himself. The Kid's friend Shooter cautions him, reminding the Kid how he thought he was the best five-card stud player in the world, until Howard "gutted" him when they played.
Howard arranges a game with wealthy William Jefferson Slade, who secures Shooter's services as dealer. Howard wins $6,000 (over $90,000 in 2015 dollars) from Slade over a 30-hour game, angering Slade and wounding his pride. That night at Slade's home, he tries to bribe Shooter into cheating in the Kid's favor when the two players meet. Shooter declines, but Slade calls in Shooter's markers worth $12,000 (over $200,000 in 2015 dollars), and blackmails him by threatening to reveal damaging information about Shooter's wild wife, Melba. Shooter agonizes over his decision, having spent the last 25 years building a reputation for integrity.
With the Kid's girl Christian visiting her parents, Melba tries to seduce him, even though she and Christian are close friends. Out of respect for Shooter, he rebuffs her, and spends the day before the game with Christian at her family's farm.
The big game starts with six players, including Howard and the Kid, with Shooter playing as he deals and Lady Fingers relieving him whenever Shooter needs a break. In the first big confrontation between the Kid and Howard, the Kid is short $2,000 ($35,000 in 2015 dollars) and Slade steps in to stake him. Several hours later, Howard busts a player called Pig, perhaps with a bluff, and the remaining players take a break. Following the break, Lady Fingers, who has been delighting in needling Howard all evening, takes over as dealer and continues to needle him.
As the game wears on, Shooter only deals, and then after another hand when Howard outplays them, two more players, Yeller and Sokal, drop out. That leaves just Howard and the Kid. After a few unlikely wins, the Kid calls for a break and confronts Shooter, who admits to being forced into cheating by Slade. The Kid insists he can win on his own and tells Shooter to deal straight or he will blow the whistle, destroying Shooter's reputation. Before the game resumes, Melba succeeds in seducing the Kid. Christian makes a surprise visit to the room, catches them after the fact and walks out on The Kid.
Slade tells the Kid that Shooter will continue to cheat for him and confronts him with a menacing thug, but the Kid flatly refuses. Back at the game, The Kid maneuvers to have Shooter replaced by Lady Fingers, lying that Shooter is ill. He then wins several major pots from Howard, who is visibly losing confidence.
The final hand[edit]
The Kid is on the button.
Lady Fingers deals Howard the 8â¦ and the Kid the 10â£. The Kid bets $500 and Howard calls. Howard gets the Qâ¦ and the Kid the 10â .
The Kid bets $1,000 and Howard raises $1,000. The Kid calls.
Lady Fingers deals Howard the 10â¦ and the Kid gets the Aâ£. The Kid bets $3,000 and the Man calls.
The Man's final card is the 9â¦; The Kid gets the Aâ  and checks. The Man bets $1,000. The Kid raises $3,500 and is all in. Howard reaches into his wallet and raises another $5,000. The Man offers to take his marker and the Kid calls the bet.
Howard turns over the Jâ¦ for a queen-high straight flush. The Kid turns over the Aâ¥, to show the cooler with a full house, Aces full of tens.
Following the game, the Kid leaves the hotel and loses a penny pitch to a shoe shine boy he had beaten at the same game at the film's opening. Around the corner, he runs into Christian and they embrace.
Alternate versions[edit]
In some cuts, the film ends with a freeze-frame on Steve McQueen's face following his penny-pitching loss. Turner Classic Movies and the DVD feature the ending with Christian. Jewison wanted to end the film with the freeze-frame but was overruled by the producer.[3]
The cockfight scene was cut by British censors.[4]

Question: Who cautioned him?
Answer: His friend Shooter.