Nick Park

I went back over the sketch books I'd filled at Sheffield for ideas and discovered Wallace and Gromit, except Gromit was a cat then. I made them into Plasticene shapes and started 'A Grand Day Out.' It took me longer than I expected.

As I get on and films take four years to complete, I tend to have a hankering for very short projects so you can move on to the next idea. It's the ideas I'm interested in. What comes out of your head.

Self-indulgence is something to watch, but anything that helps you understand situations that are difficult to understand is good. If you're having some sort of emotional trauma, you need to find a person to talk to about it who says, 'This is quite normal; it's fine.'