New trailer for 'Other Mommy' with Jessica Chastain reveals a sinister entity terrorizing a young girl

A horrifying new preview is out for Jessica Chastain's new movie "Other Mommy."

Basic info:

• Plot: Bela, an eight-year-old girl living in a home with marital problems, confronts a sinister entity that comes out of her closet. The presence, whom she calls "Other Mommy," becomes increasingly threatening to her and her family.
• Cast: Jessica Chastain, Arabella Olivia Clark and Dichen Lachman.
• Director: Rob Savage
• Release date: Oct. 9, 2026

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Jessica Chastain at the Ralph Lauren show as part of Spring/Summer 2026 New York Fashion Week on September 10, 2025 in New York, New York. ((Photo by Lexie Moreland/WWD via Getty Images))

New trailer released for "Other Mommy" with Jessica Chastain.

The first preview for "Other Mommy" came out back in July, and immediately sent shockwaves through the internet.

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It was a terrifying promo for Chastain's latest film.

Jessica Chastain attends the 12th Breakthrough Prize Ceremony at Barker Hangar on April 18, 2026 in Santa Monica, California. ((Photo by Emma McIntyre/Getty Images))

Well, a new preview was released on Wednesday, and it's every bit as scary as the first one. Whoever is in charge of marketing for the film deserves a raise.

Give it a watch below, and let me know your thoughts at David.Hookstead@outkick.com.

That is the definition of a terrifying movie trailer, and you don't have to take my word for it. People in the comments on YouTube are sharing plenty of reactions.

One viewer wrote, "This looks terrifying."

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Another person wrote, "Jessica Chastain always brings that beautifully creepy, brilliant energy."

Jessica Chastain attends the 38th American Cinematheque Awards at The Beverly Hilton on December 06, 2024 in Beverly Hills, California. ((Photo by Axelle/Bauer-Griffin/FilmMagic via Getty Images))

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You can catch "Other Mommy" in theaters starting Oct. 9, and make sure to send me your thoughts on the preview at David.Hookstead@outkick.com.