It is literally mind boggling to get your head around just how big the movie Frozen has become, you can't go a day without hearing THAT song, parents were scrapping each other for the dolls in toy stores and you can guarantee there was something from the movie under nearly every kids tree this Christmas. This programme will take an in-depth look at what has become the most successful animated film of all time, chatting to the people who made it, those who wrote the catchy songs and how a seemingly ordinary Disney princess tale became the cultural phenomenon of 2014.