Overview
- Universal and Blumhouse released final trailers and teasers Sept. 15–16 and put tickets on sale as the film enters its Halloween-season campaign.
- Coverage and director Rob Savage emphasize Chastain’s physically demanding dual performance as a loving mother and a sinister doppelgänger.
- The story follows eight-year-old Bela, whose home is haunted by an entity that assumes her mother’s exact appearance and repeatedly asks her, “Can I go inside your heart?”
- Other Mommy is adapted from Josh Malerman’s 2024 novel Incidents Around the House, written for screen by Nathan Elston and produced by Blumhouse/Atomic Monster with James Wan attached.
- The Motion Picture Association gave the film an R rating for some bloody violence and language, and studios moved the release from May to October to align with recent horror box-office trends.