Strictly speaking, this may not be a feature film, but a "conscience action" of French intellectual directors and filmmakers during the Vietnam War, and it is a classic among the few feature documentaries. At the beginning of the film, the commentary has already pointed out the gist of the film: the Vietnam War is a war between the rich and the poor, between the rich America and the poor Vietnam. In the following paragraphs, such as "crying Johnson,"flashback (flashback),"camera eyes,"what are We fighting for,"Ann and Yue,"dazzling," and so on, we approached the Vietnam War in depth and in many ways as the writers and directors entered the current situation in Vietnam and the United States, discussed the history of the Vietnam War, watched the discussions of intellectuals, and participated in discussions among people all over the world. There are not only the subjective exposition of the director, but also the "objective" documentary cut from the newsreel, and even extremely personal expressions. Probably in Godal's passage, we keep seeing the same scene of a photographer / director sitting behind the camera from different angles and different scenes, while the commentary says: we can't go to Vietnam, we can only make this film here. In a large number of facts and opinions, even including.