Everyday life is only an illusion, behind which lies the reality of dreams.
Imagine a film where the 'making of' said film so overwhelms the narrative that it transcends the source material. Most biopics are perforce reductive, but not only does Werner Herzog select a boat over *ten* times heavier than the original, instead of dismantling the boat as happened in real life, he decides to drag it over the mountain instead. Kinski hardly seems to be acting here; his madness is Fitzcarraldo's, and the obvious dubbing somehow makes the madness stronger.