First Kill

First Kill is a 2001 Dutch documentary film that revolves around the psychology of war. Important turning points in the Vietnam War are used to illustrate the effect of war on body and mind. The documentary consists of interviews with Michael Herr and several Vietnam veterans. The depth of the interviews provides insight into the feelings that accompany violence, fear, hate, seduction and pleasure.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.