In order to recreate the atmosphere of pre-war Pearl Harbor, the producers staged the film in Hawaii and used current naval facilities. Many active duty military members stationed in Hawaii and members of the local population served as extras during the filming. The set at Rosarito Beach in the Mexican state of Baja California was used for scale model work as required. Formerly the set of "Titanic" (1997), Rosarito was the ideal location to recreate the death throes of the battleships in the Pearl Harbor attack. A large-scale model of the bow section of mounted on the world's largest gimbal produced an authentic rolling and submerging of the doomed battleship. Production Engineer Nigel Phelps stated that the sequence of the ship rolling out of the water and slapping down would involve one of the "biggest set elements" to be staged. Matched with computer generated imagery, the action had to reflect precision and accuracy throughout.