Horror fans who caught the jump scare ahead of The Odyssey already knew this was coming. Universal's Other Mommy official trailer is now online, and the theatrical date is locked for October 9, 2026.
Official trailer
The clip follows young Bela as she bonds with a sinister presence in the house that looks uncannily like her own mother. Jessica Chastain plays both the real mom and the entity. Rob Savage directs. James Wan produces under Blumhouse Atomic Monster.
What Universal confirmed
From the studio's own trailer description:
In theatres October 9
Dual role for Jessica Chastain (mother and Other Mommy)
Jay Duplass as Daddo
Arabella Olivia Clark as Bela
Supporting cast includes Dichen Lachman, Arian Moayed, Karen Allen
Screenplay by Nathan Elston (Succession), based on Josh Malerman's novel Incidents Around the House
Director: Rob Savage (Host, The Boogeyman)
Your mommy won't save you. Other Mommy only in theaters October 9.
That line is Universal Pictures' own YouTube trailer copy.
Ticket timing note
This trailer went public on July 21, 2026. The Odyssey attachment buzz came first in theatres. Online, the full official trailer is the clean shareable version. Showtimes and rating are not in this drop. Calendar lock is October 9.
Follow the Other Mommy hub for later updates, or browse more movies coverage.