The exorcism movie is now something like the gangster film or the cowboy movie or the romantic comedy, which is to say, a genre with fairly predictable characters, plot developments, and dialogue. In recent years, there has been a spate of exorcism films, including “The Exorcism of Emily Rose” and “The Last Exorcist.” Now gracing (is that the right word?) the theaters is “The Rite,” a movie starring Anthony Hopkins as a grizzled experienced exorcist and Irish newcomer Colin O’Donoghue as his youthful and doubt-plagued apprentice. One novel feature of this film is that we get to see some of the training program that prospective exorcists pass through in the Vatican. We also get to witness the rather extraordinary theatrical exertions of Hopkins, who leaves not one little piece of scenery unchewed by the end of the film.