Stopped after watching half. Not sure what it was, but the storytelling never grabbed me and I found it both too slow (constant interruptions of the core story with uninteresting personal recollections) and too fast (not enough time setting up the historical context and showing the sequence of events clearly).
One of the best documentaries I've ever watched. Offers an in depth dicussion of the rise and fall of the socialdemocratic party in Brazil with an artisanal and thrilling 1.p-pov narrative.