On details, you might conduct a search about our discussion (about a year ago) of the changes that Mike made to Vito's office once Mike became head of the family. That's just one. Another is whether in one office scene about whether Vito was holding a transistor radio or box of fish food. We've discussed even more details such as cars and even the WWII stickers on the car winshields and the NY landmarks along the route Clemenza took before he murdered Paulie ... the list goes on and on.