I havent watched Frozen before because I never thought of it as interesting since it didnt look interesting.
But then I read that it made billion dollar profit, which made me wonder and I became curious.
So I watched it, and yeah, its definitely entertaining even tho the story doesnt really move anywhere at all.
The whole story is basically just queen being unable to control her power. Everything relates to that point alone.
Still, the ending was rather beautiful and kinda makes up for the first hour of mostly non-interesting too simple story.
I would say that its the ending which made it popular. Its the last 40 minutes which make it worth.