Ian Mckellen

When you grumble about a taxi being dirty, people your own age will absolutely agree with you, whereas younger people say, 'You should be so lucky to have a taxi - I walk to work!' So I have lots of young friends, who fortunately don't treat me as a guru, a person that knows all the answers.

We're very lucky, men, that there are these fabulous parts. Women - once you've done all the parts in Shakespeare, they start running out. So you can pick and choose and find something to energise you.

After decades spent in rewrite rooms surrounded by other shouting writers, I discovered that I work best alone. I like being in charge of my time, working out the problems according to my own rhythms and being able to nap. That's a big one, the napping on demand!

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.