Now, having proved that I didn't hate everything about the movie, I'll move on to what didn't work for me- which was quite a lot, frankly. First of all, the plot kind of meanders around, and too much time is spent on some unimportant details while plot points which need more explanation and characters who need more development are skimmed over or ignored entirely. Also, the big twist in the plot isn't a twist at all: it's completely obvious to anyone with a few functioning brain cells.
Also, the plot revelation that Elsa is the "fifth element" isn't exactly a big shocker either. After being introduced to the spirits of wind, water, earth, and fire, who else was it going to be other than the ice-producing character?
In the end, Elsa abdicates the throne, making Anna the queen, and decides to live in the enchanted woods, hobnobbing with the other elements, because apparently she's happier with them than with family. Whatever turns your crank, I guess. But this film is such a morass of unexplained and illogical plot points, mixed messages, and questionable morals, that it's hard to figure out what exactly the point of it was, if there was, indeed, any point beyond profit.