"I pitched them that I wanted to do Romeo and Juliet. I wanted Jane to be stuck on Earth and Thor to be stuck where he is. And Thor to be forbidden to come and save Jane because Earth doesn't matter. And then by coming to save her ... they end up discovering that Malekith is hiding the dark energy inside of Earth because he knows that Odin doesn't care about Earth, and so he's using Odin's disinterest in Earth to trick him," she said.

"And so it was like, I wanted it to be a grand [movie] based on Romeo and Juliet ... a war between the gods and the earthlings, and Thor saves the day and ends up saving Earth."