NT2 Productions (USA): 1

Director Jon Turteltaub and producer Jerry Bruckheimer released National Treasure: Book of Secrets (2007), an American action-adventure film. The story takes place five days after the Civil War’s end, as John Wilkes Booth and Michael O’Laughlen, members of the KGC, ask Thomas Gates to decipher a message copied into Booth’s diary. Though Thomas decodes the Playfair cipher, he realizes that Booth and O’Laughlen have ulterior motives to aid the Confederacy. In a race against time, Thomas burns the cipher pages and shares the keyword with his son ...