Originally, Queen Elsa was intended to be the villain of the story. However, when the character's major song, "Let it Go," was played for the producers, they concluded that the song was not only very appealing, but its themes of personal empowerment and self-acceptance were too positive for a villain to express. Thus, the story was rewritten to have Elsa as an isolated innocent who is alarmed upon learning that her powers are inadvertently causing harm and struggles to control her powers with Anna's help.
사실 초기 엘사는 완전 악역으로 설정되었었는데,
제작자들이 메인테마곡 "Let it Go."를 듣고 노래가 주는 메시지가 너무 감동적이고 희망차서 스토리를 처음부터 다시 뜯어고쳤다네요.
그야말로 신의 한 수!