Netflix's upcoming prediction markets documentary hasn't even premiered yet, and it's already generating legal drama. Kalshi sent Netflix a cease-and-desist letter demanding the company remove the trailer for Instadocs: The Prediction Games, claiming it falsely suggests traders were using Kalshi to trade sports event contracts in Nevada. At the same time, a court order prohibited those markets.
Netflix disagrees, saying the footage is authentic and that the trade shown in the trailer came from a screenshot taken long before the Nevada restrictions were put in place. The dispute has quickly become one of the most talked-about stories surrounding prediction markets, with both companies standing firmly behind their version of events.
What Kalshi Says the Trailer Gets Wrong
At the center of the disagreement is a short scene filmed during a World Cup watch party in Las Vegas. The trailer shows a participant displaying what appears to be a $5,000 Kalshi position on Spain to win the tournament while saying he likes using the platform. Kalshi argues the scene gives viewers the impression that sports event contracts were being traded in Nevada during the World Cup final, despite a court order currently preventing the company from offering those markets in the state.
According to Kalshi's legal letter, the image shown on the phone was actually a screenshot from May 16, 2025. The company also claims the trailer includes terminology, such as "bet slip," that has never appeared on its platform and says those details create a misleading picture of how Kalshi operates.
Netflix Pushes Back
Netflix has rejected the suggestion that the documentary fabricated footage. A spokesperson said the World Cup party was filmed in Las Vegas during July 2026, but explained that the featured trader voluntarily showed producers a screenshot of a position placed in May 2025, well before any Nevada court order existed. Netflix also stated that no footage in the documentary was fabricated and emphasized its commitment to journalistic standards.
Those competing explanations leave viewers with two very different interpretations of the same trailer. Kalshi believes the editing falsely connects an old screenshot to current events, while Netflix says the material accurately reflects what participants chose to share during filming.
The Documentary Includes Kalshi Itself
One interesting twist is that Kalshi actually participated in the documentary. Promotional material for The Prediction Games says the film includes interviews with Kalshi CEO Tarek Mansour alongside Polymarket CEO Shayne Coplan. That makes the public dispute especially notable, since the company is now attempting to stop promotion of a project it previously cooperated with.
Kalshi's marketing team has argued the documentary missed an opportunity to tell the industry's story accurately, saying it instead relied on sensationalized scenes that could create confusion around ongoing legal issues.
The Trade Handle Prediction Markets Take
This disagreement is about much more than one trailer. Kalshi is currently involved in legal battles across several states, so the company has strong reasons to challenge anything it believes could affect those cases or create the impression it is ignoring court orders.
Netflix, meanwhile, is standing by its reporting and insisting the footage accurately represents what happened during production. Whether the trailer changes before the documentary's release remains to be seen, but the controversy is another reminder that prediction markets continue attracting attention well beyond the financial world. As the industry grows, public perception may become almost as important as the legal arguments unfolding inside the courtroom.