Well, of course some of it's going to be made up. Winegardner decided, he had an interest in Puzo's story, so he decided to take some of it, add, and eventually, make a story of his own using characters based on that of Puzo's novel. Instead of making it more, fact-based, I think Winegardner was more focused on going his own way and getting a story going (though it did stink).

I would have to say, my favorite part would have to be the last few pages, and the section about Michael's childhood. It interested me to some extent. I don't think I'll read another book based on The Godfather if it hasn't come from Mario Puzo. He was truly an amazing person. He could come up with a great idea, and put it on paper, such as the Corleones. If another author comes out with a book based on la cosa nostra, but not on The Godfather, I would be more willing to read it. The Godfather was a classic, there's no beating it, so leave great things as they are.