Kalshi demands Netflix take down trailer for ‘Prediction Games’ documentary

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Prediction market Kalshi sent Netflix a cease-and-desist letter on Friday demanding that the streaming service take down the trailer for an upcoming documentary. In the letter, Kalshi claimed the trailer is “defamatory” and contains “both fabricated documents and false and misleading statements.”

“Instadocs: The Prediction Games” is a documentary about the rise of prediction markets. According to Netflix, the film — part of the streamer’s “Instadoc” series of fast-turnaround documentaries — features interviews with both Polymarket CEO Shayne Coplan and Kalshi CEO Tarek Mansour.

The trailer, however, focuses on a recent party in Las Vegas, where men who have “made millions of dollars on prediction markets, probably eight figures, just over the course of the World Cup” have gathered to watch the World Cup final. One of the guests declares, “I like betting on Kalshi,” while another shows off an apparent $5,000 bet on their phone.

However, Kalshi is currently ...

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