The trailer has been released for National Treasure: Book of Secrets, the sequel to the 2004 hit.
Yahoo! Movies has the trailer available to view at this link.
National Treasure debuted in November of 2004, and went on to gross an impressive $347.45 million worldwide ($173.01 million domestically and $174.44 million overseas).
National Treasure: Book of Secrets will be released stateside on December 21, 2007.
Source: Yahoo! Movies