Rungano Nyoni’s ‘On Becoming a Guinea Fowl’ Wins Zurich Film Festival admin 2 weeks ago USA Update Comments Off on Rungano Nyoni’s ‘On Becoming a Guinea Fowl’ Wins Zurich Film Festival 29 Views Shiori Itō’s ‘Black Box Diaries’ won Zurich’s audience award in addition to the documentary film prize. Share Facebook Twitter Stumbleupon LinkedIn Pinterest