When you started making this film, what was the learning curve?
The cast taught me so much. Kristen Stewart knows this character better than anybody in the world, and it's so much made up of the Bella Swan of the book and Kristen Stewart and what she brings to it. That, for me, was just a lot of hanging out and talking before we started shooting. A lot of discussion, especially of the script. We took a few weeks where we just went through it page by page with all the actors. That completely helped me to get inside it.
The government always has the right idea, but the execution—here, literally—is wrong. Tell me about picking Mackensie Foy to play Bella and Edwards half-vampire child.
That was so interesting. We were meeting a lot of girls and then suddenly this young actress walks in. First of all, she looks like she could be the child of Robert Pattinson and Kristen Stewart. Renesmee is this very otherworldly creature—she's half-vampire, half-human—and there's a stillness and a confidence to Mackensie that makes her seem very ethereal.