National Treasure: Book of Secrets (released on home video as National Treasure 2: Book of Secrets) is a 2007 American action-adventure film directed by Jon Turteltaub and produced by Jerry Bruckheimer. It is a sequel to the 2004 film National Treasure and is the second film of the National Treasure film series. The film stars Nicolas Cage, Diane Kruger, Justin Bartha, Jon Voight, Harvey Keitel, Ed Harris, Bruce Greenwood, and Helen Mirren.
The film premiered in New York City on December 13, 2007, and was released in North America by Walt Disney Studios Motion Pictures on December 21, 2007. Like its predecessor, the film received mixed reviews due to its excessive similarity to the first one, but was a box office success, grossing over $459 million worldwide. A third film is in development.