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 (video game) of movie-license dog food, instead is a refreshing re-thinking on the rather worn adventure genre." The game was also shown at E3 2006 in May. Announced a month before the main game was a two-part mobile phone adaptation of the novel, developed by Kayak Interactive. The first part, "The Da Vinci Code: The Quest Begins", was released on April 14, 2006 prior to both the main game and the film. The adaptation took the form of an isometric puzzle game. The second part of the game was never made. The original music of "The Da Vinci Code" video game was