A24 horror "Backrooms" returns to cinemas with 15 new minutes after record success

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We’re now past the halfway point of 2026, and as with every year, there have been some major box office surprises. The year opened with a few sci-fi bombs in Mercy (starring Rebecca Ferguson ) and Greenland 2: Migration (starring Gerard Butler ), which collectively lost millions for both Amazon and Warner Bros. The first big sci-fi box office smash hit of the year didn’t come until the premiere of Project Hail Mary (starring Ryan Gosling ), which grossed over $600 million at the box office before also becoming a streaming success on MGM+ . It’s also been a wildly successful year for low-budget horror movies, including Backrooms , which hails from 21-year-old director Kane Parsons . After earning $330 million against a $10 million budget to become the most successful A24 film ever, the studio is putting Backrooms back in theaters this weekend with 15 minutes of never-before-seen footage.