The best documentary about the saga, though far from great, it's probably the one that better condense all the aspects about it. The last part is probably the less interesting. I think is better than the documentary "The Masterpiece That Almost Wasn't", as "A look inside" has more team interviews and less "people that like the movie" ones. Anyway, both are good and interesting for fans, and not of them great enough.

It's decent for what it is, although it could have easily been better. Coppola creeps me out a little -he incessantly promotes his family members, much like the Corleone family did. Minus the killings of course.