Trivia: The easter egg roll scene was filmed on Mount Vernon, with the White House added in the background.
National Treasure: Book of Secrets (2007)
1 trivia entry
Directed by: Jon Turteltaub
Starring: Nicolas Cage, Ed Harris, Helen Mirren, Harvey Keitel, Jon Voight, Diane Kruger, Justin Bartha
Factual error: Ben, Abigail and Riley arrive at the Library of Congress to take the President's Book very late at night. However the Library of Congress, despite being shown as open, consistently closes at 5 PM.
Ben Gates: Before the Civil War, the states were all separate. People used to say "the United States are..." It wasn't until the war ended that people started saying "the United States is..." Under Lincoln, we became one nation.
More questions & answers from National Treasure: Book of Secrets
Answer: It is never explained what was on the page. It was just a cliffhanger to set up for a 3rd movie, I think.