That structure doesn't exactly flow as well as in the older movies, where the songs were so brilliantly part of the storytelling, and here it's clear that the movie at times stops in order to make room for a song, often one that isn't exactly integral to the plot (I'm thinking of the snowman Olaf's introduction, or the final song in the movie, "Fixer-Upper," involving a group of singing trolls). But complaints like that are fairly minimal, and the story itself is about two sisters, the princesses of Arendelle- one is Elsa (Idina Menzel), the Snow Queen with magic powers who can freeze anything she touches, and the other her feisty younger sister Anna (Kristen Bell). The sisters are separated when Elsa's powers grow out of control, and she's taught to suppress and ignore them while living in isolation from the outside world.
When the sisters are grown, the townspeople accidentally witness Elsa's uncontrollable power and she flees Arendelle, leaving the village trapped behind in eternal winter. Of course, it's up to Anna to go fetch her sister and bring her back, running into friends along the way, including Olaf the snowman (cleverly voiced by Josh Gad) and Kristoff the friendly ice deliverer (Jonathan Groff, who surprisingly isn't asked to capitalize on his own Broadway background for this). It's fairly thin material but the characters are cute and clever, and the animation is absolutely gorgeous. The eternal winter we see in the movie is stunning to look at and the animators are to be commended for the exquisite ice worlds they've created. The one thing the movie could have really used however was a better villain. For most of the film there isn't one, but when one is revealed towards the end it's in a kind of half-hearted manner that doesn't fully take advantage of the opportunity to present any real, threatening conflict. And hey, if there's one thing that makes Disney movies memorable it's all the great villains they've been able to come up with. Everything in this movie is a little too nice and simple by the end- some more conflict would have raised the stakes a little bit.