Walt Disney Pictures is launching a huge online treasure hunt this Monday to help promote their upcoming action adventure film, National Treasure: Book of Secrets, which arrives in theatres on December 21st.

The film stars Nicolas Cage, Jon Voight, Harvey Keitel, Ed Harris, Diane Kruger, Justin Bartha, Bruce Greenwood and Helen Mirren.

The studio will formally start its "The World's Biggest Treasure Hunt" this Monday where anyone can participate to win a Mercedes Benz and "real treasure" and for now, you can CLICK HERE to check out a promo-animation for the contest:

In this follow up to the box-office hit National Treasure, treasure hunter Ben Gates (Nicolas Cage) once again sets out on an exhilarating, action-packed new global quest to unearth hidden history and treasures.

When a missing page from the diary of John Wilkes Booth surfaces, Ben's great-great grandfather is suddenly implicated as a key conspirator in Abraham Lincoln's death. Determined to prove his ancestor's innocence, Ben follows an international chain of clues that takes him on a chase from Paris to London and ultimately back to America. This journey leads Ben and his crew not only to surprising revelations - but to the trail of the world's most treasured secrets.