Will Tizard ContributorWhen Chinese indie documentarian Rikun Zhu set about chronicling the struggles of a young Maoist true believer artist, who dreams of a new life in New York, he knew he was taking on a puzzling contradiction, he says.“It interested me a lot,” the filmmaker says, “because he always says he is a communist and loves China and Mao Zedong.”As Zhu’s subject frets and plans, his efforts take him through long nights of lecturing and teasing his girlfriend and eventually to Beijing