written by Winfried Scharlau, Ming Shi ; directed by Ralph Quinke ; a production by ChristianBerg TV & Media GmbH with the support of Nordmedia Fonds GmbH for NDR
presented by Zeitgeist Films ; written, produced and directed by Sue Williams ; Ambrica Productions in association with WGBH Boston and Channel 4 Television UK
a series by Ambrica Productions in association with WGBH Boston and Channel 4 Television UK ; executive producer, Judith Vecchione ; written produced and directed by Sue Williams