Was there anything surprising working again with Leonardo [DiCaprio]?
KW: With Leo, there’s a surprise every day. I have just seen him get better and better. I didn’t even think that was possible because he was always so amazing, but over the last 12 years, I’ve just seen him go from strength to strength, and I really do believe that he is the best actor of his generation, and I feel very, very proud to have had two opportunities now to have worked alongside him. He’s incredibly professional; he’s unbelievably brave. But I suppose the only surprise, really, was just how close we really are. We’ve always remained very good friends and we really trust each other, but when we were actually there on set shooting some of those very difficult scenes, we have a sort of language of our own, like a private secret language or something, and I was surprised at how present that was within our relationship, and it was just great to have the history that we have and the chemistry that we have, and being able to play these two characters, because there were no boundari