Nuns are seen near Giovanni Lorenzo Bernini's sculpture the Ecstasy of St Theresa, which plays a part in novelist Dan Brown's book Angels & Demons, at Santa Maria della Vittoria church in Rome May 1, 2009. After exposing a Church cover-up in "The Da Vinci Code," symbologist Robert Langdon returns to the big screen as an unlikely Vatican ally in the latest movie adaptation of a novel by author Dan Brown. "Angels & Demons," again starring Tom Hanks as Langdon and directed by Ron Howard, premieres in Rome Monday at a theatre a mile away from Vatican City. REUTERS/Chris Helgren (ITALY ENTERTAINMENT SOCIETY)