"She wasn't on my mind because she hadn't worked for a while," says Aronofsky. "My casting director mentioned that she was interested in working again. I was immediately excited and interested by the idea of it. It's been a while so I wasn't so sure where she was at. But once we started to talk, it was amazing."
Aronofsky said the movie is his "howl to the moon," provoked by anguish at the state of society and particularly the environment.