Q&A with Werner Herzog and Clive Oppenheimer

The people you speak with are so engaging, and so sincere. How well did you know them before you started shooting?
Clive Oppenheimer: I only knew Simon Schaffer, who is a historian of science in Cambridge.

Q&A with Christopher Nolan and Emma Thomas

When you’re talking with Cillian about that and how you’re going to essentially be inside of his head for a lot of the film, what do you discuss about him embodying this man?
Christopher Nolan: I think the first and most important conversation was the one where we both agreed that we were not interested in some kind of impersonation.