La Reine des Neiges 2

The song used to call Elsa to the enchanted forest is a type of Scandinavian herding call called kulning. It was used briefly in the score of the first movie. In Frozen 2, the kulning central to the plot is performed by a Norwegian singer Aurora. The melody used for the kulning is the "dies irae," which, since the 13th-century (or sooner), has referred to the wrath of God's judgment on humanity.

When Anna tells the Rock Giants to throw their boulders, the first one hits the middle of the bridge, but when Anna is running back to Kristoff and Mattias, that part of the dam is not broken.

There is a post-credits scene in which Olaf recaps the events of the film.

Edited into Zenimation: Water (2020)