At nineteen I was pretty sure I was going to be a professional soccer player. At that time I played for one of the Norwegian premier leagues. But I tore ligaments in both knees, so I started studying business administration and economics and became a financial analyst, and I worked at a brokerage firm as a stockbroker.

Everything you do leaves traces, doesn't it. The life you've lived is written all over you, for those who can read.

I don't think I'll ever feel as famous or as popular as I felt when I was a 17-year-old soccer player in Modle. Only about 20,000 people live there and 12,000 of them come to every game. Running onto the pitch each week was just the most fantastic feeling. Nothing can beat that.

Good police officers are ugly.

Until the Eighties, Oslo was a rather boring town, but it's changed a lot, and is now much more cosmopolitan. If I go downtown, I visit the harbour to see the tall ships and the ferries, and to admire the modern architecture such as the Opera House or the new Astrup Fearnley Museum on the water's edge.

I've been watching more American TV because of all the great TV series that have come out in the last five to 10 years. I'm a 'Sopranos' fan, I'm a 'Wire' fan, I'm a 'Mad Men' fan. I'm a 'Deadwood' fan. It makes me optimistic for the future of storytelling on TV that producers are willing to take that kind of jump.

When you're an established name, you know that a children's book will have a pretty good chance of getting picked up. Like Madonna. It's not that I had this great idea. Actually, in my case, it was a great idea.