Vienna as you have never seen it on screen, in a film which baffled and impressed this festival’s selectors in roughly equal measure. A food deliverer in the throes of a tough breakup is forced to reexamine his life . . . This synopsis but only hints at the disorienting wildness through which, by the simple magic of editing, a bare-bones story is electrified into something jarringly and excitingly unusual and capitalism is coruscatingly critiqued.