COOL Water has recently utilized Hotmob’s mobile ad network to publicize its cross promotion with the hottest movie in town, The Dark Knight Rises. The mobile ad campaign has involved a tactical lucky draw with the movie by-products. Users who have called the registration hotline after purchasing COOL water will be able to win the limited Batman USB stick. They are also automatically enrolled in the final lucky draw for the limited 1:6 Batman figure with 10 entries. This Pop-up ad campaign is launched through OpenRice Hong Kong iPhone APP.