Criticism of The Da Vinci Code "Smithy Code Jackie Fisher who are you Dreadnought", referring to the British admiral whom Judge Smith admires. As with the book, this secret message made use of Fibonacci numbers for its encoding. Dan Brown has been sued twice in The United States by author Jack Dunn who claims Dan Brown copied his book The Vatican Boys (1997) to create The Da Vinci Code, Angels & Demons and Brown's now famous character Robert Langdon. Jack Dunn calls Dan Brown's actions, "The Largest Literary and Movie Crime in History." At a conference on April 28, 2006 Archbishop Angelo Amato, the secretary of
The Da Vinci Code (film) Catholic Bishops Conference of the Philippines (CBCP) and other religious groups to stop the showing of the film. However, Cecille Guidote Alvarez, Philippine Presidential Adviser on Culture and the Arts, said the Philippine government would not interfere in the controversy about the film and leaves the decision to the Movie and Television Review and Classification Board's (MTRCB) rating. Eventually, MTRCB decided to give "The Da Vinci Code" an R-18 rating (restricted to those 18 years of age and above) despite PAAP's opposition to showing it. The film was banned outright in the Independent State of Samoa after church leaders watching