Other Mommy Trailer And Poster Find Jessica Chastain Dealing With Her Evil Doppelgänger

Other Mommy Trailer And Poster Find Jessica Chastain Dealing With Her Evil Doppelgänger

The first trailer and poster for Other Mommy have been officially released, and they find Jessica Chastain (Dark Phoenix) going to some dark places in this new movie from The Boogeyman director Rob Savage.

By JoshWilding - Jul 21, 2026 03:07 PM EST
Filed Under: Horror
Source: FearHQ.com

As we first reported over on FearHQ.com, the first trailer and poster for Other Mommy have been released. You may have caught the tease before select screenings of The Odyssey this past weekend, and Jessica Chastain's return to the horror genre looks positively spine-chilling.

From producer James Wan, one of the most influential architects of modern horror behind the Saw, Insidious, and The Conjuring franchises, and Rob Savage, the director of bold genre films Host and The Boogeyman, comes a terrifying trip into the darkening world of a young girl, Bela, who forms a relationship with a sinister entity in her home that looks uncannily like her own mother.

Academy Award winner Jessica Chastain (It Chapter Two, The Eyes of Tammy Faye) stars in a dual role as Bela’s mother and as "Other Mommy," a manifestation of the entity. Jay Duplass (Transparent, Industry) plays Daddo, Bela’s father, and Arabella Olivia Clark (The Housemaid, The Hand that Rocks the Cradle) plays Bela. 

The impressive supporting cast includes Actor Award nominee Dichen Lachman (Severance), Emmy and Tony Award nominee Arian Moayed (Succession) and screen icon Karen Allen (Indiana Jones).  

Talking to The AU Review, Wan praised Chastain's performance/s in the movie when he enthused, "[She's] really the secret weapon. The secret sauce to this movie. It would not work as well as it does if it were not for her, and it’s truly not your typical slasher/horror villain movie. So much of what makes this movie work is what she brings to the table."

"It's part of the fun in watching this film and asking, 'Is this the good Jessica Chastain or is this the demonic Jessica Chastain?' You’re never quite sure which is which, and that’s part of the fun. Even more deceiving is the fact that Rob made this movie through the perspective of the little girl, and watching it through this young, innocent kid’s perspective, you’re never sure which mother it is."

"But what makes it fun is that the other mommy always just goes one step too far into fantastical territory," the filmmaker added, "and that’s when it breaks the reality, and the audience realises, 'Oh, this isn’t the good mother.'"

From Blumhouse Atomic Monster, Other Mommy is directed by Rob Savage, from a screenplay by WGA Award winner Nathan Elston, writer for the Emmy-winning sensation Succession, based on the New York Times bestselling novel Incidents Around the House by Josh Malerman (Bird Box). Executive producers include Michael Clear, Judson Scott, Rob Savage, Josh Malerman, and Ryan Lewis. 

Other Mommy arrives in theaters on October 9.

About The Author:
JoshWilding
Member Since 3/13/2009
Comic Book Reader. Film Lover. WWE and F1 Fan. Rotten Tomatoes-approved critic and ComicBookMovie.com's #1 contributor.
IT: Welcome To Derry Officially Returning For Season 2 - And It's Taking Pennywise To 1935
Related:

IT: Welcome To Derry Officially Returning For Season 2 - And It's Taking Pennywise To 1935

The Devils: Full Trailer For NC-17 Cut Of One Of The Most Controversial Films In History Released
Recommended For You:

The Devils: Full Trailer For NC-17 Cut Of "One Of The Most Controversial Films In History" Released

DISCLAIMER: As a user generated site and platform, ComicBookMovie.com is protected under the DMCA (Digital Millenium Copyright Act) and "Safe Harbor" provisions.

This post was submitted by a user who has agreed to our Terms of Service and Community Guidelines. ComicBookMovie.com will disable users who knowingly commit plagiarism, piracy, trademark or copyright infringement. Please CONTACT US for expeditious removal of copyrighted/trademarked content. CLICK HERE to learn more about our copyright and trademark policies.

Note that ComicBookMovie.com, and/or the user who contributed this post, may earn commissions or revenue through clicks or purchases made through any third-party links contained within the content above.

Simonsonrules
Simonsonrules - 7/21/2026, 3:29 PM
This looks amazing.
TheRevelation
TheRevelation - 7/21/2026, 6:18 PM
@Simonsonrules - Yup. The way they let you sit with her just being contorted under that kitchen table alone...

User Comment Image
MasterMix
MasterMix - 7/21/2026, 3:30 PM
User Comment Image
SorcererSupreme
SorcererSupreme - 7/21/2026, 3:44 PM
Looks very cool
MisterBones
MisterBones - 7/21/2026, 3:59 PM
Terrified the whole theater before The Odyssey started
MotherGooseUPus
MotherGooseUPus - 7/21/2026, 4:47 PM
@MisterBones - thats how you know the trailer did its job
TheVisionary25
TheVisionary25 - 7/21/2026, 5:53 PM
That seems intriguing imo…

Jessica Chastain is a great actress so to have her play dual roles and one of them being this supposed supernatural entity/horror movie villain just sounds real fun so I might give it a shot tbh.
Oberlin4Prez
Oberlin4Prez - 7/21/2026, 6:06 PM
I legit jumped with the dad. Lol
ModHaterSLADE
ModHaterSLADE - 7/21/2026, 6:11 PM
Now this looks interesting.
centaur
centaur - 7/21/2026, 6:29 PM
actual jump scare.
Dolan
Dolan - 7/21/2026, 7:00 PM
This book was super creepy
Waifuslayer2
Waifuslayer2 - 7/21/2026, 8:42 PM
Lame
BlackStar25
BlackStar25 - 7/21/2026, 11:13 PM
Dad kitchen shot sold me...IM IN!!!
marvel72
marvel72 - 7/22/2026, 3:01 AM
This looks fantastic,can't wait.

Please log in to post comments.

Don't have an account?
Please Register.

View Recorder