The New York Times has posted several pieces about Frozen this week. First is a look into the changing story, which originally featured feuding sisters and a cast where “most of the characters were really unlikable”. Next is a piece about how the animators pushed to make the singing believable. Finally, a video that “goes behind the scenes at Disney’s Burbank, Calif., headquarters to learn more about the inspirations — like Grumpy Cat and a hidden roller rink — behind the film and especially the hit soundtrack”.