I've now seen Frozen.
Although the cameo is short, there's more to it then I expected.
I always assumed you'd just see Rapunzel from behind, so it wouldn't be obvious who she really was.
But when Anna walks up to her, she shifts position to look at Anna and you can clearly see her face, leaving you under no illusions who exactly you are looking at.
And there's a hidden Wreck-It Ralph cameo as well.
It's much more subtle, but it is there nonetheless:
http://a.dilcdn.com/bl/wp-content/uploads/sites/2/2013/12/Chocolate-Truffles.jpgThe sweets on the table closest to Anna are part of Sugar Rush.
I'm thinking if Anna and Elsa ever got to Sugar Rush, there would be a huge problem.
They're both very fond of chocolate, to the extent they can detect it's scent all the way across a large room above all other olfactory sensations.
I'm assuming there would be a sudden chocolate shortage if they showed up in Sugar Rush.......
I wonder if Elsa can make frozen chocolate desserts.........