October 9. That’s the date now set for Other Mommy, the supernatural horror film starring Arabella Olivia Clark as Bela, a child who finds her closet haunted by a doppelgänger of her mother — played by Jessica Chastain in a dual role. The film, directed by Rob Savage and based on Josh Malerman’s novel Incidents Around the House, is being released theatrically under the Blumhouse and Atomic Monster banner, with James Wan producing. No delays. No reshoots. Just a Friday release, like clockwork. And yet, the quietest part of the story might be the most telling: Clark called this role her ‘unicorn’. Not just any role. A dream. One she didn’t even know she was chasing until it landed. She read the script twice during auditions. Then her mother bought the book. She read that too. And still, she wanted more. That kind of hunger doesn’t come from a casting call. It comes from something deeper. Something real. The film’s tone? Unsettling. The premise? Simple: a child’s imagination turns monstrous. But the performance? That’s where it lives or dies. And Clark, at just eight years old, is carrying it. The cast includes Jay Duplass, Dichen Lachman, Arian Moayed, Karen Allen, all seasoned, all sharp. But the weight rests on one small face. The trailer hasn’t dropped yet. The reviews aren’t out. But the buzz is already building. Not because of the stars. Not because of Wan’s name. Because of a girl who said, “I knew I wanted to be Bela.” And then kept saying it. Five months later. October 9 isn’t just a release date. It’s a test. How much can a child carry? And how many people will believe her when she says she’s not scared?