A trailer for "The Exorcist: Martyrs" surfaced Friday at New York Comic Con, with Scarlett Johansson cast as someone tracking a demonic killer. The film is directed by Mike Flanagan and acts as both a sequel and a reboot of the long-running horror franchise.

Flanagan says the project leans into "The Exorcist III" and describes it as the most frightening film of his career. He told reporters the film was designed to feel dangerous and that it made him noticeably unsettled during production.