Trivia for Angels and Demons

The film's original title was "The Mystery Of Bernini" referring to the legendary artist Bernini. The title, however, was changed to Angels and Demons.

Aside from the explicit introduction, the film depicts various fictional experts explaining matters in science, technology, and history in which critics have pointed out inaccuracies. An example of this is the antimatter discussions, wherein the movie suggests that antimatter can be produced in useful and practical quantities and will be a limitless source of power. CERN published a FAQ page about Angels & Demons (2000) on their website stating that antimatter cannot be used as an energy source because creating it takes more energy than it produces.

It took director Comic-Con San Diego twelve letters to write to the Pope in order to get permission to shoot in and around the Vatican in Rome.

According to The Boston Globe language columnist, Ben Zimmer, the Devil's Advocate, which is indicated in the film to have a role in the selection of the pope, has nothing to do with the papal conclave, and was instead employed to present arguments against the proposed canonization of a person as a saint. Zimmer adds that the Devil's Advocate was abolished by Pope John Paul II in 1983, 17 years before the movie was released in theaters.

Angels & Demons Decoded, a documentary on the American cable television network, The History Channel, premiered on May 10, 2009, shortly before the release of The Lost Symbol (2009), the third installment in the Robert Langdon series. The documentary explores the various bases of the story of the film, as well as its inaccuracies. A CERN official, for example, points out that over the last 20 years, approximately 10 billionths of a gram of antimatter has been produced at the facility, whose explosive yield is equivalent to that of a firecracker, far less than is needed for it to be the threat depicted in the film.

Comic-Con San Diego's original idea was to make a documentary about the history of the Vatican and it traditions. He scrapped the idea but continued to have ideas about making a film involving the Vatican.