Cacique launches, as the main element on its ad campaign, a short film called "La llamada" (The Call), which is announced in offline media and is spread online through the site in which the short film becomes interactive. If the user introduces his/her phone number, the "wizard" -main character of the short film- will make a call from a telephone box. When it happens, the user will discover the number phoned is his/her number, and then the cell phone rings. That's the moment in which reality and fiction will become mixed.