I watched first third of it. At 3 hours it might be too long. I hope to catch rest of it next showing. It was good, but too many outside commentators were being bought in. Every person who ever wrote a Mafia book was a guest commentator.
I stopped when Jennifer Masica followed louis Ferrente.

The background on how it was cast was very interesting, imagine if Robert Redford or Ryan O'neil had been cast as producers wanted. Would have liked to see more of the home movies taken during the filming, those were nice touch.