by reading several books, online forums and I also went to a support group for sufferers and their families. I also got hold of as many films as I could that featured it in some way. One, called Dirty Filthy Love , starring Michael Sheen, is a good film and it does a great job of explaining exactly what OCD is, in all it's different forms, but, after seeing it, I knew that wasn't the kind of book I wanted to make. I wanted to make a book for someone who had OCD and didn't need it explaining to them. I didn't want Nao's condition to dominate the story to that extent or at least I didn't want the explaining of it to take over. As in Martin Scorsese's The Aviator , when I first saw that, I knew nothing about OCD, and I certainly didn't know Howard Hughes suffered with it, I'd just heard he was an eccentric recluse. I like the way Scorsese didn't try to explain the condition, instead he showed us it. So when I re-watched The Aviator having researched the condition more, it offered up new layers of depth and meaning. And I appreciate the fact that Scorsese trusted the audience with that, it made for a much more rewarding experience. With regards "belly laughs," well, I wanted there to be those moments, because life is never all dark, or all happiness and light. And although she suffers with what can sometimes be a completely