It's a movie set in spain and it is about this girl and her mom gets married to this evil guy who is rich and powerful, and he tries to kill the wife's baby if its not a boy, the little girl always sees thing and she discover a misticle world of fanticy

It's a movie set in spain its about a girl whoes mom marries a mean man but she slips away to a mejestic fantisy world

It's El laberinto del fauno (2006) (http://www.imdb.com/title/tt0457430/)

Aka Pan's Labyrinth