The game officially premiered on February 10, in a red carpet event held in Little Italy, with James Caan, Robert Duvall and Johnny Martino (who played Paulie Gatto in the film) in attendance. At the event, it was announced that a playable demo would not be available until the E3 event in May. David De Martini explained the game had already been in development for two years, including a full year of preproduction and research. He revealed the developers had worked closely with Mark Winegardner, author of "The Godfather Returns", to ensure the storyline stayed within the canon of the narrative, and maintained the correct tone. De Martini also stated that as well as Rota's score, Bill Conti and Ashley Irwin had composed one-hundred minutes of new music for the game.