“People’s Park” is a single-shot feature-length documentary that depicts a slow passage through a Chinese urban park. The film is by Libbie D. Cohn and J.P. Sniadecki, who will be on hand to introduce it at 7:10 p.m. Saturday at Angell Hall Auditorium A, along with Abe Mark Nornes, chair of Screen Arts and Cultures. The program is sponsored by the Center for Chinese Studies. Photo courtesy J.P. Sniadecki and Libbie D. Cohn.