The Spanish Civil War is the preamble to the two world wars, a key moment in 20th century worlds politics. The movie The Endless Trench is located at this historical moment, in the dynamics of this conflict. The film provides clues to read this social reality and search through into the reasons for this confrontation. Movies makes it possible to make the leap from the macro gaze to the subjective vision of phenomena. What perspective does the cinema introduce to approach this reality, how does it rework the existing interpretations of war, what elements of judgment does it introduce to evaluate the participation of the subjects in the conflict? The article answers these questions. His main contribution: changing perspective, focusing the war on the character’s life (in his microcosm and his daily life) and seeing how he suffers the effects of the conflict, how the violence that accompanies it alters his way of life.