10 Announced Movies That Mysteriously Disappeared

As of late, Sony seems to be getting on the right track with its video-game-to-movie adaptations, setting up an in-house division called PlayStation Productions to handle upcoming film projects like Uncharted, and Ghost Of Tsushima.

In the mid-2010s though, the company had a few stumbles. One of those was the doomed big-screen adaptation of Sly Cooper, which was announced in 2014 alongside a slick teaser trailer, only to vanish into development hell.

In 2016, director Kevin Munroe indicated that the movie hadn't even entered production yet, later revealing that the project had been on standstill for over a year.

Animation studio Rainmaker then stated that the poor box-office performance of the Ratchet & Clank movie had caused them to re-evaluate Sly Cooper, and they ended up leaving the project in 2017.

The failure of Ratchet & Clank clearly put Sly Cooper on hold, but technically, it's never been cancelled. It's speculated that the remnants of the movie were recycled for the Sly Cooper TV series - which, funnily enough, is also in development hell - but it's unclear exactly what happened here.