Disney’s well-trodden plot points have been gloriously reimagined. What makes it a smash is that it does this while still delivering the much-needed “warm hugs”, and excellent gowns. Olaf the snowman delivers the wisecracks in the sidekick role, but is innocent and charming enough that they become funnier and more subversive. Prince Hans is a textbook love interest, but so normal that you fall in love with him too – which makes his later villainy all the more hardcore. And Kristoff the iceman – not a prince, not magic – is the rarest thing of all: a really nice bloke.