If you want access to the full catalog of films from the Star Wars franchise or the Marvel universe after 2019, you'll need to sign up for Disney's forthcoming streaming service, Disney CEO Bob Iger announced on Thursday.

Last year, Netflix began streaming a wide range of Disney titles, including Disney animated films and films from Disney's Pixar, Lucasfilm, and Marvel divisions. Last month, Disney announced that it would be pulling a number of Disney titles from the Netflix catalog.

In that announcement, Disney left the door open to keeping the Star Wars franchise and Marvel films on Netflix. But now Disney is slamming the door shut on a renewed Netflix deal, choosing instead to use movies like Iron Man, Captain America, and the forthcoming Star Wars: Episode IX as a draw to a new Disney-owned streaming service.

It's not clear exactly which films are affected by Iger's announcement. A Netflix spokesperson told The Verge last month that "we continue to do business with the Walt Disney Company on many fronts, including our ongoing deal with Marvel TV." That refers to a collaboration between Disney and Netflix to produce several live-action television series based on lesser-known Marvel characters Daredevil, Jessica Jones, Iron Fist, and Luke Cage. Some of those series are still being actively developed.

It's a high-risk gamble for Disney. It makes sense for Disney to bring its best-known franchises back under its own roof to give the Disney streaming service the best possible chance of success. But Disney is leaving a lot of money on the table by not doing a deal with Netflix or one of its competitors. It could be an expensive mistake if the Disney streaming service doesn't get traction.