Trivia for Angels and Demons

• This movie became the first big-screen casualty of the Hollywood writer's strike in 2007, because Akiva Goldsman's script still needed work, and he was on strike with the Writers Guild of America. So, production of the movie had to be postponed.
  
  
• The production had to build a scale replica of St. Peter's Square since Vatican officers banned the movie from being filmed in its grounds.
  
  
• Although the novel upon which this film is based is set before the events of the novel The Da Vinci Code, the film has been written as a sequel to follow after events in The Da Vinci Code (2006).
  
  

• Naomi Watts was originally cast as Vittoria.
  
  
• Alfred Molina who played Aringarosa in The Da Vinci Code (2006) did the voice over for this movie's first trailer.
  
  
• Thure Lindhardt was nearly cast as Silas in The Da Vinci Code (2006). Ron Howard liked his audition so much that he offered him the role of Chartrand in this movie.