Angels and Demons director Ron Howard hinted in an interview in December on US TV show Shootout that his team had been forced into unusual measures by the ban. "We didn't shoot at the Vatican officially. But cameras can be made really small," he said.

Roman Catholic Church officials found The Da Vinci Code offensive and forbade filming in their churches, so these scenes were shot at Sony. The Caserta Palace doubled for the inside of the Vatican, and the Biblioteca Angelica was used for the Vatican Library.