Herzog, who also wrote the screenplay, clearly relishes the contradictions as he blurs the line between reality and drama (or is it deadpan satire?), but “Family Romance, LLC” can’t always bear the weight of the questions. Acting as his own camera operator, Herzog largely appears content to observe the ritual dance embedded in the multiple layers of artifice, and the film drags at times; its lean, vérité approach lacking the narrative thrust to fully engage.