One of Rain Man’s most enduring legacy threads is its role in cementing the public misconception that card counting equals criminality. In the film, Charlie and Raymond use Raymond’s numerical gifts to win big at blackjack, are caught on casino videotape and are theatrically escorted out — a sequence that millions took to mean card counting was illegal. In reality, card counting is not a federal crime in the United States; casinos, which are private businesses, can and do refuse service to players suspected of advantage play and may use surveillance evidence to eject them or ban them. Rain Man’s dramatized, punitive depiction blurred that legal distinction for lay audiences and helped popularize the myth. The misconception has been repeatedly debunked by legal scholars and gambling regulators, but the image of the casino security sweep remains a cliché rooted in the film’s popular reach.
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