Chris Nolan’s much-awaited sequel, The Dark Knight Rises, is expected to hit theatres worldwide on July 20. Now, if you are a die-hard Dark Knight fan who can’t wait to see the sequel, go find some cocoa beans that have been scattered across India en route their way from Ghana. Find them all and you not only get to watch the film before anyone else, but also win a trip to Australia to visit Warner Brothers Movie World. If you haven’t guessed already, we are talking about the online bean hunt — Cadbury’s latest promo for its Bournville range of chocolates. While running brand contests is old hat, getting interactive via digital and social media is new.