I'm thinking there is just as much a template for 'respected' biopics. Specialised, contained, made as if you have already read the extended biography. Recommended by a Germanophile friend and watched on a plane. Not ideal, but I struggled to engage, little in the construction or implications that left me inspired.
A prelude to "Ein Film Aus Deutschland", Syberberg crafts a conditions-of-possibility for Hitler's much later rise to power; in this way, it is in very much in the same vein as Haneke's "The White Ribbon". The embattled May is portrayed as equal parts adventurer and hazy mystic -"the finest deeds of a nation have always emerged from its soul"- but crucially one crafted from the context of his turbulent times.