Who is the author of the novel which provided the inspiration for a film shown at the opening of the  64th annual Venice International Film Festival?
64th Venice International Film Festival The 64th annual Venice International Film Festival, held in Venice, Italy, opened on August 29, 2007, with Joe Wright's "Atonement" and closed September 8, 2007. Host of the event was Italian actress Ambra Angiolini. The Golden Lion for Lifetime Achievement Award was presented to American director Tim Burton. Once again all the films running the contest were shown for the first time as world premieres in keeping with the festival tradition since the Second World War.
Dan Brown Daniel Gerhard "Dan" Brown (born June 22, 1964) is an American author of thriller fiction, most notably the novels "Angels & Demons" (2000), "The Da Vinci Code" (2003), and "Inferno" (2013). Brown's novels are treasure hunts set in a 24-hour period, and feature the recurring themes of cryptography, keys, symbols, codes, and conspiracy theories. His books have been translated into 52 languages, and as of 2012, sold over 200 million copies. Three of them, "Angels & Demons" (2000), "The Da Vinci Code" (2003), and "Inferno" (2013), have been adapted into films.