2000年6月，我的研究生同学宁敬武把他写的电影剧本交给我，并邀我再次合作拍摄一部儿童片《无声的河》。影片讲述了一群聋哑学校的学生帮助他们的实习老师（正常人）恢复信心的故事。在电影学院读研究生的阶段，宁敬武就非常喜欢费穆的《小城之春》。他的毕业论文是《诗化电影 In June 2000, my graduate student Ning Jingwu handed me the movie script he wrote and invited me to once again cooperate in the filming of a children’s film, The Soundless River. The film tells the story of a group of deaf school students helping their intern teacher (normal person) regain confidence. In the film graduate school graduate stage, Ning Jing Wu Fei Mu very like “Little Town Spring.” His thesis is "poetic movie