I have something which is called the bum ache factor. You're sitting there going, Oh God, another hour. You've got to be really sure that you're running a three and a half hour movie that is actually worthwhile, otherwise people get weary. And so when I'm cutting, or we are cutting with my mother's editor, you're constantly watching out for where are we bending and why is it bending? It is a natural fault you want to hang on to stuff. And also it's really part of a talent to know when you've got enough. It's part of your choice.