it's made it's author andrew morton a millionaire and in hits fourth preprint, many saying it will fact the biggest crisis in the royal family it is of course, diana, her true story. >> the book was diana. it blew open the entire pretense of the marriage. >> it was astonishing. >> the royal family for generations had been seen as the model family and here was a book with a princess talking about how she binged on food, made here self vomit, attempted suicide, how her husband was in love with another woman. >> there was real shock and disbelief that these things can happen in the royal family. >> no one challenged the institution of the monarchy in this way before. >> diana her true story is definitely not what the royal family would want you to hear.