Warner Bros. Discovery will not release Batgirl despite the film being in the final stages of development.
The film, which was set to star Leslie Grace in the titular role, with Michael Keaton and J.K. Simmons returning to the Batman franchise in supporting roles alongside Brendan Fraser, already cost $90m to produce.
A source cited by the New York Post, which broke the story on Tuesday, cited poorly received test screenings as the reason for cancellation.
Scoob!: Holiday Haunt, an animated Scooby Doo film, has also been scrapped by the company.
It is the latest in a series of moves following WarnerMedia’s merger with Discovery that have turned industry heads, such as when HBO cancelled European TV productions and when CNN+ was shelved after less than a month of airtime.