Mike Flanagan's Exorcist sequel gets its first teaser as horror legend calls it "unsafely dark"

In the wake of writing Clayface and creating a new version of Carrie for the small screen, Mike Flanagan has unveiled the first look at his new Exorcist movie. The upcoming seventh movie in the franchise, The Exorcist: Martyrs, stars Scarlett Johansson and Chiwetel Ejiofor, and Flanagan has teased just how dark it gets.Speaking to FilmSpeak, he confirmed that the movie is the darkest thing he's ever written. "It's viciously dark," Flanagan said. "It's unsafely dark at times, and we went places i