Jessica Chastain's "Other Mommy" Opens to Mixed Reviews and Strong Box Office Tracking

Universal Pictures' psychological horror thriller "Other Mommy" opens in theaters today, October 10, with tracking projections ranging from $17 million to $29 million for the weekend, positioning the Jessica Chastain-led film as the box office leader during the crucial Halloween season run-up.

The wide range in box office forecasts reflects uncertainty about whether the R-rated horror adaptation can overcome decidedly mixed critical reception, with early reviews describing "Other Mommy" as one of the most poorly received films of 2026. Despite the critical drubbing, horror films have proven remarkably resilient at the box office this year, with genre entries consistently delivering strong opening weekends regardless of Rotten Tomatoes scores.

Chastain plays a dual role in the Blumhouse Atomic Monster production, which began Thursday previews at 2 p.m. across 2,850 theaters, collecting $3.6 million. The film expands to 3,365 screens for the weekend, betting that horror audiences will turn out for a genre entry positioned in the sweet spot between summer blockbuster season and Halloween weekend.

Horror's Reliable Box Office Performance in 2026

The horror genre has been one of the box office's most dependable success stories throughout 2026, with audiences demonstrating consistent willingness to see scare-focused films in theaters despite the proliferation of streaming options for home viewing. Universal originally scheduled "Other Mommy" for a May 8 release before moving it to October 9, recognizing that the pre-Halloween corridor offers the strongest commercial prospects for horror content.

If "Other Mommy" reaches the upper end of its $22 million to $29 million tracking range, it would mark the best domestic debut for a horror book adaptation since "It: Chapter Two" in 2019, according to projections from Global Box Office analysts. That milestone would represent a significant commercial achievement despite the critical backlash, demonstrating that franchise potential and star power can drive box office results independent of review scores.

The film's production comes from Blumhouse Atomic Monster, the combined entity following Blumhouse Productions' merger with James Wan's Atomic Monster, creating a horror powerhouse responsible for some of the genre's most profitable films in recent years. The studio's low-budget, high-return model has made horror one of the most economically efficient segments of the film industry.

Competing Against "The Social Reckoning"

While "Other Mommy" dominates the horror lane, it faces competition from "The Social Reckoning," which earned $650,000 from Thursday night previews. The social thriller appeals to a different demographic but competes for discretionary entertainment spending during a weekend where both films target audiences looking for tension-driven theatrical experiences.

The gap between "Other Mommy's" $3.6 million Thursday haul and "The Social Reckoning's" $650,000 suggests a significant disparity in commercial potential, with Chastain's horror vehicle attracting substantially larger preview audiences despite critical reviews that would typically depress advance ticket sales. This pattern reinforces the horror genre's unique position in theatrical exhibition, where audiences often prioritize the communal scare experience over critical consensus.

Chastain's Horror Credentials and Career Positioning

Jessica Chastain brings significant star power to "Other Mommy," though tracking suggests the film may underperform compared to some of her previous horror outings. The Academy Award-winning actress has demonstrated versatility across genres, but horror audiences have proven selective about which genre entries featuring A-list talent will break out commercially versus those that deliver modest returns.

The dual-role structure, with Chastain playing multiple characters, offers a technical showcase for the actress's range while potentially complicating the film's narrative clarity. Horror films that attempt psychological complexity sometimes struggle to balance character development with the genre's requirement for sustained tension and effective scares, a challenge that reviews suggest "Other Mommy" does not fully overcome.

Halloween Season Box Office Landscape

The October theatrical market represents prime real estate for horror releases, with audiences primed for scary content as Halloween approaches and studios betting that genre films will outperform non-horror competition during the season. "Other Mommy" benefits from minimal direct horror competition this weekend, allowing it to capture the full breadth of audiences seeking scares in theaters.

Universal's decision to hold "Other Mommy" until October, despite having a May release slot, reflects strategic confidence that the Halloween corridor offers superior commercial prospects even if it means delaying the film's release by five months. The move mirrors industry-wide recognition that horror films have become increasingly concentrated in the fall months, when audience receptivity to scary content peaks and theater operators welcome reliable genre content that drives ticket sales.

Whether "Other Mommy" settles near the low end of its tracking range at $17 million or approaches the high end near $29 million will provide signals about the upper limits of horror box office in a year when the genre has consistently delivered but has not produced a breakout phenomenon comparable to the biggest horror hits of recent years. The film's weekend performance will be scrutinized as a barometer for how much audiences still prioritize theatrical horror despite streaming alternatives offering genre content at home.