According to Lee, several core concepts were already in place, such as the film's "frozen heart" hook: "That was a concept and the phrase ... an act of true love will thaw a frozen heart."[70] They already knew the ending involved true love in the sense of the emotional bond between siblings, not romance, in that "Anna was going to save Elsa. We didn’t know how or why."[70] Lee said Edwin Catmull, president of Disney Animation, told her early on about the film's ending: ".. you have to earn that ending. If you do[,] it will be great. If you don't, it will suck".[63]. However, the final version differed sharply from the earlier ones. In the original, Elsa had been evil from the start, kidnapping Anna from her own wedding to intentionally freeze her heart and later descending upon the town with an army of snowmen.[61]:8:42 "The whole second act was about Anna trying to get to Hans and to kiss him and then Elsa trying to stop her".

Hmm como que la idea era aplicar lo que hicieron el Maléfica, de querer trasformar a la reina malvada cliché en una buena persona. Prefiero lo que resultó que eso.

creo que hubiera sido interesante que hicieran a Elsa una villana trágica