By the very nature of being a clergyman's son, people tend to put you slightly apart, which is - you tend to live a life, at some stages, as being - people being suspicious of you and puts you rather on a - I don't mean lonely, particularly. But it does tend to put you apart.

It's a great relief to feel that you're working with someone rather than for someone. You don't feel that you're being tested, as it were.

I've got plenty of train memories. I was sent to school when I was eight years old in 1948 in Kent. So I had to go through London in 1948, just after the war. Many ,many strange experiences.

The British tradition, basically, is to go to the character. And the Hollywood tradition, shall we say, is basically to take the character to the performer.

I mark a script like an exam, and I try not to do anything under 50 per cent. Similarly with the part. And also film is a peculiar thing, parts don't necessarily read in script form anything like as well as they can do when it comes to materialising.

By the time I came to do the final ones [Harry Potter's film], I was working on something that was massively successful. There was a huge difference in indulgence and all sorts of stuff. A very big difference in peoples' attitudes. They were very pleased with themselves. In human terms, it was quite interesting to see the difference.

Lotte Lenya was all emotion. She wasn't anything but emotion. She was not an intellectual.