It was one of the biggest films of 2013, and remains a favourite with youngsters around the globe, but this week adults can get a taste of what it's all about too, when Once Upon A Time returns for a new season, and makes Frozen's Elsa a key character.
Elsa the snow queen, played by Georgina Haig, was seen arriving into Storybrooke after emerging from Rumplestiltskin's vault in the season three finale, but this season she'll be joined by sister Anna (Elizabeth Lail), Kristoff (Scott Michael Foster) and even his reindeer Sven.
The series' showrunners (Eddie Kitsis and Adam Horowitz) are self-confessed Disney addicts.
"We had seen the movie, fell in love with it, then all our writers saw it and loved it," says Horowitz.
"We were super-inspired and started to get ideas, so we called Disney and asked, 'Can we do this?'"