Google and Sony have announced a huge promotional contest in the lead-up to the movie version of The Da Vinci Code. The Da Vinci Code Quest on Google is set to kick off on April 17th (the 18th for Australians) with over three weeks of code-solving required:

The Da Vinci Code involves a thrilling murder investigation that unearths a secret that could change the course of history. The film opens on May 19th worldwide.

Beginning on April 17th you will embark on a quest that requires skill, intellect, and perseverance. For 24 days, you will encounter unique challenges. These daily puzzles will pull you deeper into the world of The Da Vinci Code. Answer all 24 puzzles correctly for a chance to win untold riches. Only the worthy will prevail.

The competition is divided into three territories - the U.S., the U.K. and Australia (and boy do us Aussies get the shabby prize pool!). Considering that Sony is involved, one wonders whether the competition will involve the many ciphers found in the movie trailer and on the website (see the essay on this site which gives the answers to The Da Vinci Code ciphers so far). Needless to say, we'll try and keep a running commentary up on the competition (your input is welcomed!).