In the 1988 movie Rain Man during the casino scene, the dealer shorts the chip payout by $100, demonstrating that it was a dirty casino. Raymond then later "incorrectly" guesses the number on the roulette wheel, showing that the casino is manipulating games since Raymond is never wrong about the correct number.
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In the movie 21, Jeffrey. The Planet Hollywood Casino blackjack dealer (named Jeffrey) that Jim Sturgess's character, Ben Cambell, refers to as "my brother from another mother," is Jeff Ma, a member of the real-life MIT blackjack team, and also the individual that Sturgess's character is based on.
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James Bond is a terrible tipper. In Casino Royale. he gives the dealer $1 million, but had just won a staggering $115 million. That's less than 1% of his winnings.