I agree. It is very sad that GF III was done so forward into the present, that it really could not connect the dots of the past. Most certainly though, you could use the book to complete the rise of Vito Corleone, and that could be a separate title.

I also do not think that anyone can really do the justice that these actors, Pacino, Shire, Duvall, DeNiro, Brando, Caan, and even Cazales to make these films such classic genre.