Both Zang and Wang, seen as up and rising filmmakers, had also taken the two main prizes at the Busan International Film Festival in South Korea in October.
Zang has long worked alongside acclaimed Chinese director Zhang Yimou but "The Donor" was his first work as a director and portrayed the tragedies that come with organ transplants.
"Knife in the Clear Water", also Wang's first feature film, tells the story of a farmer and the realities of life in a mountain village.
The Jury Prize at the festival was awarded to "Mister Universo" a film co-directed by Italian Tizza Covi and Austrian Rainer Frimmel.
Best actress award went to Fereshteh Hosseini for her performance in the film "Parting" of Afghan director Navid Mahmoudi.
Baldur Einarsson and Blaer Hinriksson shared the best actor award for their roles in the Icelandic movie "Heartstone" of director Gudmundur Arnar Gudmundsson.
Hungarian director Bela Tarr presided over the jury at this year's festival, which paid a special tribute to Iranian filmmaker Abbas Kiarostami who died in July.
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Zang has long worked alongside acclaimed Chinese director Zhang Yimou but "The Donor" was his first work as a director and portrayed the tragedies that come with organ transplants.
"Knife in the Clear Water", also Wang's first feature film, tells the story of a farmer and the realities of life in a mountain village.
The Jury Prize at the festival was awarded to "Mister Universo" a film co-directed by Italian Tizza Covi and Austrian Rainer Frimmel.
Best actress award went to Fereshteh Hosseini for her performance in the film "Parting" of Afghan director Navid Mahmoudi.
Baldur Einarsson and Blaer Hinriksson shared the best actor award for their roles in the Icelandic movie "Heartstone" of director Gudmundur Arnar Gudmundsson.
Hungarian director Bela Tarr presided over the jury at this year's festival, which paid a special tribute to Iranian filmmaker Abbas Kiarostami who died in July.
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