I knew Richard E. Grant, and I went to him and said "Would you like to [play Kafka in the film]?" and he said yeah, and then suddenly I had all these people who were happy to come along. We got a little bit of money from Scottish Screen to pay for it. I got so many favors because I knew people in the business. I was in a remarkably good position. I got so many favors from people. I got the Monty Python technical people.

I'd say, don't listen to what anyone says: you're good. Go put your anorak on. Get your thick bottle-top specs. Draw your little cartoons and your comics and keep writing to the BBC.

When I first came to London, I loved hanging around in cafes, smoking, scribbling, dreaming. It was life-affirming and fun.

I was just interested in directing. So I just kept having a go at trying to write little scripts and get things together, and my wife just had a slip of the tongue and said, "Franz Kafka's It's A Wonderful Life" when she meant to say "Frank Capra's." There it is right there. That's a gag that we could make into something.

I'm sure if Shakespeare were alive today, he'd be doing classic guitar solos on YouTube.

The older I get, the more I think lightness of touch is an incredibly difficult thing to do.

A little showbiz never hurt anyone.