Foaming at the mouth, rolling of the eyes, assuming serpentine characteristics in the face or body: all classic signs, explains Father Gary Thomas, of demonic influence.

Father Thomas, pastor of the Sacred Heart Parish in Saratoga, California, is an avid Giants fan and a 28-year veteran of the priesthood. He is also a practicing exorcist; in the fall of 2005, Father Thomas traveled to Rome to complete a year-long training course under the tutelage of a master Italian exorcist. The story of his training inspired The Rite, a Warner Brothers film starring Anthony Hopkins that opens in theaters Friday.

Despite this fictional portrayal, Father Thomas is also the embodiment of a new trend in the American Catholic church: Long the purview of American cinema, Catholic exorcism is being reclaimed, publicly, by its real-life practitioners. A factual account of Father Thomas’s training has been published in a book by journalist Matt Baglio; the Discovery Channel recently announced the airing of a reality show featuring the accounts of trained Catholic exorcists (though the Vatican has denied any official involvement with the series); and last November, Bishop Thomas John Paprocki of the Diocese of Springfield in Illinois convened a two-day conference to discuss the practice […]