Comedy will always be central to what I do, it's just an instinct for me, but I am a writer and always have been.
In documentaries, you're confronted with reality; you can not manipulate or move it.
My latter schooldays and my university days were during the war, when science - physics, in particular - was a very important and glamorous subject. A lot of us felt that if we couldn't get into science, we might try engineering or medicine.