I loved the first two-thirds of this jaw-dropping epic. For my second viewing, this time with a friend, we both agreed that it fell to pieces after that point, becoming incoherent and unfathomable, whilst still being stylish and remaining 'strange'.
The visual sense was part 'Aguirre, Wrath of God' and Sergio Leone's 'Once Upon a Time in the West'. But, in grainy, high contrast black & white. Camera movements are urgent rather than flowing with the odd editing flourish to enliven the action. We both found this approach initially utterly mesmerising.
This film is of hardcore fanaticism, with religious bigotry and the sheer survival in the harsh scrub desert-lands of northern Brazil. Some scenes are reminiscent of Russian cinematic masterpieces by Eisentstein, as in Ivan the Terrible. I think some scenes will offend and appal many viewers whilst still retaining mystery and that 'Wow, this is something totally different and exciting'. The sort of film that has the critics swooning but with the actual film-lover rather less than overawed.
I'd rather not go into all the narrative in and outs, mostly because it is the overall effect and impression that it has left on me. Unforgettable, true; daring and significant, undoubtedly. But that doesn't make it a film any easier to watch, though. I would give the first two thirds 9/10 and the remainder five.