Anyway, all snark aside, I actually did find the first 40-odd minutes of Deliver Us from Evil to be a largely interesting synthesis of two genres, mixing the plot structure of a police procedural into the incredibly convention-bound exorcism movie (incidentally, by the end of the film's 2010 prologue scene, set in an underground cave-temple in Iraq, it's becomes hauntingly clear that this shall be ripping off, not merely The Exorcist , but Exorcist: The Beginning also.