In one of the most memorable scenes in the classic movie, The Sting, grifter Henry Gondorff (Paul Newman) cheats crime boss Doyle Lonnegan (Robert Shaw) out of $15,000 in a card game  by secretly switching four jacks into his hand in place of the cards that were dealt him. This scene, in which Lonnegan knows he was cheated but can’t prove it in front of the other players, sets the stage for the entire second half of the film.