It's been 12 years since Harry Potter and the Philosopher's stone, the first movie from the Harry Potter Saga, was released in Spain, and it quickly became a huge phenomenon everywhere in the country. More than six million people watched it and it became one of the highest grossing films in Spain. The magic of Harry Potter has accompanied Spaniards since the first book came out back in 1997 and now an exhibition just arrived in Barcelona to immerse us once again in the wizarding world. To tell us about it, we spoke withTom Zaller, founder and CEO of Imagine Exhibitions, the company behind "Harry Potter: the exhibition".