I could not begin to guess how many times my elder daughter has watched Frozen, but it's a lot. I myself have seen significant chunks of it on a number of occasions, though I've never watched it all the way through. Oddly, I am much more familiar with the second half of the film, as I generally seem to wander in around the time Elsa (or, to put it another way, Idina Menzel) is belting out the film's signature song, Let It Go. This does mean I generally catch the bit where Anna says to Kristoff "I want you to take me up the North Mountain" and I have to suppress a snigger.
As if the vocal gymnastics of the song didn't give her enough to do, Elsa also conjures up a spectacular crystalline ice palace out of thin air while she's singing. Well, she is magic, after all. It was only on the most recent viewing of the scene that it occurred to me what it reminded me of: the similarly spectacular crystal palace that Dr. Manhattan builds during his exile on Mars in Watchmen.
As always, I am far from the first person to make this connection, and, as this Slate article points out, there are a number of plot parallels as well: key character with extraordinary powers that they are obliged to rein in to be acceptable to society, voluntarily exiling themselves and giving those powers free rein. Dr. Manhattan doesn't sing, though.