——Read Puzio’s “The Godfather.”-——
I have and you do get a whole different prespective on several scenes and characters....
Like why Al Capone backed off....
To give movies a break -- they really cannot do what a book can do. A book can tell you what's in the characters' heads, naturally and instantly -- what they're feeling, what they're thinking, and why; film or stage can only directly do that awkwardly, with narration or some other contrived vehicle; otherwise, film and stage must rely on music to imply what's in the characters' heads, and even then, that's iffy because sometimes, the music is not so much to communicate the sense of what the characters are going through, but to suggest an emotional take to the viewer.
Movies/stage cannot hold a candle to books in that department. I still love them all, though!!!