I thought it must be pure science fiction. But when I checked it out I found a lot of magazine articles that actually supported the theory behind the book which was incredible. That's when I decided to acquire the rights of the book and everything went from there.
You know, I think I did originally have some sort of idea of maybe a Where Eagles Dare kind of mission against impossible odds, but it really sort of died before I had a chance to really go anywhere with it, and then just doing the book was out of the question.
As an actor you accept that you have to publicise what you do, but as for the whole personal life thing that people sometimes choose, no, that's not for me.