fun facts: Idina Menzel — the voice of Elsa in Frozen — originally auditioned for a role in Tangled, but was passed over. Frozen’s co-direct Flynn Rider and Rapunzel make an appearance at Elsa's coronation in Frozen and And it seems Tiana and Naveen were in attendance as well. Elsa was supposed to be the villain in Frozen, but the producers loved "Let It Go" so much as an empowering anthem that they changed her STORY LINE. Elsa's ice palace changes colour to reflect her feelings. example- When she is happy, the castle is blue; it turns red when she is scared, yellow when she is angry, and purple when she is sad.