And I retained a contrary opinion. I watched it the other day (bought as being recommended as a good documentary, despite not being a fan of their music...). I took them to be almost incapable (on film, at least...) of expressing any real feelings without being misunderstood, or fudging around for fear of being misunderstood, or finding meanings where there were none, and more. The 'shrink' seemed to be manipulating the propos much of the time, and clouding whatever issues they may have wanted to bring up with all sorts of hocus-pocus. For me, the film failed to show just how they get to work stuff out, between the laying down of a rather mundane riff and a basic 'four on the floor' back beat, with a sprinkling of shouty cigarette-packet 'lyrics', into an almost coherent stage performance. Either the interesting parts were left on the cutting-room floor, or were not filmed at all.
Still, it was cheap enough, s/h from Amazon, so no regrets, really. I'll not be studying it closely for tips on people management, though.