What's the worst thing about filming in wintery conditions?
I'm so cold. It's impossible to think clearly or to be relaxed in a scene. Yesterday we were in Osterley Park, at three or four in the morning, and it was minus seven, with this bitter, bitter wind. Well, actually that was easy because Richard and I were both supposed to look shocked and horrified and we did just because our faces were frozen into that position.
But it's really hard to keep your concentration, especially when you're tired as well. The cold gets right through, seeps into your bones.