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) film the day before its widespread release. Protests also occurred at the filming sites, but only a monk and a nun stood in a quiet protest at the Cannes premiere. In Chennai, India, the film was banned for a two-month period to appease local Christian and Muslim groups. "The Da Vinci Code" received a 25% approval rating on the film review aggregate website Rotten Tomatoes based on a sample of 220 reviews and an average rating of 4.8/10. The critics consensus states: "What makes Dan Brown's novel a best seller is evidently not present in this dull and bloated movie