SPOILER ALERT: This article contains minor spoilers for “The Exorcist: Believer,” now playing in theaters. Released 50 years after the original “Exorcist,” Universal and Blumhouse’s follow-up, “The Exorcist: Believer,” pays homage to the horror masterpiece in some grotesque ways. Just like the original, there’s vomit, head-spinning and not one, but two demonic possessions. “Exorcist: Believer” […]