The Exorcist: Believer's producer, Jason Blum, addresses its release date change, which was made to avoid coinciding with the release of Taylor Swift's upcoming concert film. After initially being slated to release on October 13, The Exorcist: Believer will now premiere a week earlier on October 6. It marks the sixth entry in the Exorcist franchise and is a direct sequel to the original 1973 film. In the movie, the parents of two possessed girls seek help from Chris MacNeil (Ellen Burstyn), the mother of The Exorcist's original subject, Regan (Linda Blair).

https://screenrant.com/exorcist-believer-release-date-change-taylor-swift-blum/