That ambivalence—a mixture of fascination and revulsion—was felt by much of the movie-going public in 1973, for reasons the author considers in the book’s more historical and analytic pages. Putting ...

As Nat Segaloff explains in his new book “The Exorcist Legacy: 50 Years of Fear,” the movie would go on to spawn sequels, prequels, knockoffs, and even a TV series, which ran from 2016 to 2017 ...