But that wasn’t all. Apparently the folks behind Frozen II also enjoyed animating certain “alternate endings” for the film. For example, without being too spoilery, there is a scene in the finished cut where Kristen Bell’s character, Anna, takes a dangerous leap off of a cliff, but lands safe and sound. In some of the extra material the animators cooked up, though, this wasn’t the case:
Article source: https://www.cinemablend.com/news/2485345/frozen-iis-animators-loved-messing-with-kristen-bell-during-early-screenings