Prediction markets have officially crossed over from crypto-Twitter curiosity to Hollywood IP. Writer Zoë Bernard sold a book project centered on Kalshi and Polymarket to Scott Stuber, the former head of Netflix Films, in what’s being described as a competitive bidding war. The book hasn’t even been published yet.

Stuber, who now produces for Amazon MGM Studios, apparently saw enough narrative gold in the prediction market saga to fight for the rights.

The platforms behind the pitch

Kalshi operates as a regulated exchange under the Commodity Futures Trading Commission. It received CFTC approval for event contracts, meaning it plays by traditional financial rules.

Polymarket, on the other hand, lives in the crypto ecosystem. It uses blockchain-based infrastructure and order-book mechanics to let users trade on outcomes.