I was hoping for a bit more from this documentary, it was a bit too naval-gazey for me for the first portion. However, it really picked up after Alessandro's confrontation with Isabella Rossellini and from then on it was quite interesting.
I enjoyed learning more about Ron and Russell, that aspect of the doc was really well done. However...
After about the first hour I found myself getting tired of certain talking head interview subjects patting themselves on the back for “getting” Sparks’ music (e.g. Patton Oswald). It was very... “their music was smart, so I was smart, too!!!!!!!!”