> But the betrayal at the end just makes zero sense
It's more surprising than we expect from Disney: there's no 'villain song' explaining the villain's private intent.
I liked it that way. It felt real to me. I felt that I had been tricked, even after the naivety of the love/relationship was heavily foreshadowed. (I felt that) we experience the scene more exactly as Anna does.
The song in the position of the Villain Song is "Let It Go". Which is quite remarkable.
The ways that Frozen breaks the expected beats make it a lot of fun -- the "twist" is genuinely unexpected because the story isn't following the tropes. But those tropes exist for a reason, and Frozen feels a little disjointed for failing to follow them.
You feel tricked because you were tricked. And yet it works, if for no other reason than the way a magic trick is fun. It has strong performances, great animation, and a positive message about the power of sisterhood.
It's more surprising than we expect from Disney: there's no 'villain song' explaining the villain's private intent.
I liked it that way. It felt real to me. I felt that I had been tricked, even after the naivety of the love/relationship was heavily foreshadowed. (I felt that) we experience the scene more exactly as Anna does.