Marta Balaga It’s a family affair for filmmaker Jialai Wang, taking a closer look at her mother and grandmother in feature debut “Paragate,” now showing at documentary festival IDFA. But she is not done just yet, currently developing a new hybrid doc under the working title “La Revenante” (“The Revenant”). “It talks about both of my parents and about their religion: My mother is a Buddhist and my father is a Christian.