The first wave of reactions to Other Mommy has landed, and the verdict from early viewers is unusually harsh for a film headlined by an Academy Award winner. Rob Savage's supernatural horror-thriller opened in theaters on October 7, 2026, and within hours of screenings, social media commentary coalesced around a single, uncomfortable talking point: Jessica Chastain, according to several early viewers, has delivered what they are calling her worst movie in a long time.

The film casts Chastain as Ursula, a mother whose likeness is appropriated by a sinister entity that insinuates itself into the life of her young daughter, Bela, played by Arabella Olivia Clark. Jay Duplass appears as Daddo / Russ, with supporting turns from Dichen Lachman, Arian Moayed as Uncle Frank, Karen Allen as Grandma Ruth, Sean Kaufman, and Adam Silver. The premise - a child drawn into an increasingly dark world by a doppelgänger that wears her own mother's face - is the kind of high-concept hook that has served Savage well before, and the 93-minute runtime suggests a lean, relentless exercise in dread.

A Divisive Reception for a Director Known for Tension

Savage built his reputation on precisely this sort of material, and Other Mommy arrives with the genre credentials to match its premise. The horror-thriller is an English-language Hollywood production, and its TMDb rating currently sits at a striking 8.7/10 - a figure that stands in sharp contrast to the dismissive tone of much of the early reaction. That gap between aggregate audience scoring and first-impression chatter is itself notable; it suggests either that the loudest early voices are not representative, or that the film is polarizing in ways that numeric averages tend to flatten.

What the negative reactions target is not the concept but the execution. Critics of the film have focused on Chastain's central performance, arguing that the dual role of Ursula and the entity that mimics her demands a register the actress never finds. The complaint, repeated across several early posts, is less that she is miscast than that the material gives her nothing coherent to play - a common failure mode when a horror film asks a prestige lead to alternate between a naturalistic parent and a supernatural predator.

The Double Role Problem

Doubling roles is a well-worn horror tradition, and it lives or dies on the actor's ability to make the two versions feel genuinely distinct while remaining recognizably the same person. When it works, the effect is uncanny in the best sense. When it doesn't, the audience sees the seams - a performance choice here, a makeup cue there - and the terror drains out of the premise. Early viewers of Other Mommy appear to believe the film falls into the latter category, with Chastain's "Other Mommy" reading as neither sufficiently alien to frighten nor sufficiently familiar to unsettle.

That is a problem for a movie whose entire engine is the wrongness of a familiar face. If the doppelgänger does not disturb, the film has nowhere to go, and at 93 minutes there is little room for redirection. The supporting cast - Duplass, Lachman, Moayed, Allen - is stocked with performers capable of grounding the domestic reality that the horror is meant to violate. Whether they are given room to do so is among the open questions the early reactions do not settle.

What the Score Says

The 8.7/10 TMDb rating complicates the narrative that Other Mommy is a misfire. Horror audiences are frequently more forgiving than critics of tonal messiness, and a high aggregate score this early can reflect genuine enthusiasm among genre fans who respond to atmosphere and imagery over performance consistency. It can also reflect a small, self-selecting sample. Either way, the divergence between the rating and the reaction cycle is the most interesting data point so far.

Savage has demonstrated a talent for staging sustained tension on modest budgets, and Other Mommy appears designed around that strength rather than around star wattage. If the film's scare mechanics land even when its lead performance does not, the audience score may hold. If they don't, the early criticism will harden into consensus.

For now, the takeaway is a familiar one in October horror: a high-concept premise, a prestige lead, a divisive first impression, and a rating that refuses to agree with any of it. Other Mommy is in theaters now, and the next few weeks will determine whether the early backlash is a verdict or merely noise.

Source: Hollywood Reporter