4K Gantz: O (2016) online Year: 2016 Country: Japan Director:Yasushi Kawamura, Keiichi Saitô Stars: Chris Jai Alex, Saori Hayami, Mao Ichimichi Stars: Chris Jai Alex, Saori Hayami, Mao Ichimichi Genre: New Movie / Animation The 3DCG film will cover the manga's Osaka Arc. Watch Gantz: O (2016) online