The Other Mommy box office race is shaping up as an October rout. Jessica Chastain’s Blumhouse horror film, which opened in theaters on October 9, is tracking toward a $17–22 million domestic opening weekend, according to Boxoffice Pro — potentially more than double the expected debut of Aaron Sorkin’s The Social Reckoning, which is limping toward a $7–8 million opening.
With a reported production budget of just $19 million, Chastain’s horror original is positioned to turn a profit almost immediately if the high end of tracking holds, per the Tribune. For Universal and Blumhouse, it would be a much-needed boost in a horror market that has been hungry for an original hit.
Other Mommy Box Office Tracking: The Numbers Behind the Weekend
Boxoffice Pro’s weekend preview puts Other Mommy at the top of the domestic chart for October 9–11, forecasting a $17–22 million range with the film most likely landing in the low-$20 millions. That is down from industry tracking that once reached as high as $35 million — the film got an early bump when its trailer was placed ahead of Universal’s The Odyssey, but the surge was not sustained through the summer.
The closest comparison is January’s Send Help, another female-fronted horror original, which opened to $19.1 million before totaling $64.7 million domestically, Boxoffice Pro notes. One caution flag: a lack of reviews or early influencer reactions, which the outlet calls “the scariest thing of all” about the release — though it points out that Resident Evil held back reactions until the last minute and still performed.
The film has ridden a wave of online attention since its unsettling trailer went viral, with audiences reportedly jumping out of their seats when it played ahead of The Odyssey, according to Startefacts.
Why Chastain’s Dual Role Is Driving the Other Mommy Box Office Buzz
Chastain, an Oscar winner familiar to genre fans from Mama, Crimson Peak and IT: Chapter 2, plays two roles: Ursula, the mother of 8-year-old Bela, and the sinister supernatural entity that lives in the girl’s closet, looks exactly like her mother, and calls itself the “Other Mommy.” Her unhinged performance as the evil doppelganger has been singled out as a camp delight by tracking analysts.
The film is based on Incidents Around the House, the 2024 novel by Bird Box author Josh Malerman, and is directed by Rob Savage (Host, The Boogeyman) from a script by Succession writer Nathan Elston, with James Wan producing through Blumhouse-Atomic Monster. The cast also includes Jay Duplass as Bela’s father Russ, plus Dichen Lachman, Arian Moayed and Karen Allen. It runs a lean 93 minutes and carries an R rating.
Read our earlier deep dive on everything we know about Other Mommy, from its trailer to its release-date shuffle.
The Social Reckoning’s Quiet Debut vs. Other Mommy Box Office Might
On the other side of the weekend, Aaron Sorkin’s The Social Reckoning — the follow-up to 2010’s The Social Network — is expected to open to just $7–8 million in North America, per the Tribune. That would fall well short of its predecessor’s performance.
The new film stars Jeremy Strong as Facebook founder Mark Zuckerberg, taking over the role previously played by Jesse Eisenberg, alongside Mikey Madison and Jeremy Allen White. The story centers on whistleblower Frances Haugen, who exposed internal Facebook documents to a journalist, renewing scrutiny of the platform’s societal impact.
The contrast is stark: an original $19 million horror film outgrossing a prestige Sorkin drama by nearly three to one. For more on Sorkin’s film, see our coverage of The Social Reckoning. Weekend actuals, released Monday, will confirm whether Chastain’s horror hit the high or low end of its range.
Other Mommy Box Office: Frequently Asked Questions
How much is Other Mommy expected to make opening weekend?
Other Mommy is tracking for a $17–22 million domestic opening weekend (October 9–11), according to Boxoffice Pro, with the film most likely landing in the low-$20 millions.
What is Other Mommy based on?
The film is based on Incidents Around the House, the 2024 novel by Bird Box author Josh Malerman. It follows 8-year-old Bela, who encounters a frightening presence in her closet that looks exactly like her mother.
Who stars in Other Mommy?
Jessica Chastain plays a dual role as mother Ursula and the entity known as the “Other Mommy.” The cast also includes Jay Duplass, Dichen Lachman, Arian Moayed and Karen Allen. Rob Savage directs and James Wan produces.
How is The Social Reckoning expected to perform at the box office?
Aaron Sorkin’s The Social Reckoning, starring Jeremy Strong as Mark Zuckerberg, is tracking toward a $7–8 million domestic opening — well below Other Mommy‘s projected debut, per the Tribune.
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