The Film ???Sir No Sir??? is a documentary film about the anti war movement during Vietnam War within the ranks of the Military of the United States. It contains the story of the GI movement with an aim of ending the war in Vietnam. The film was written and directed by David Zeiger explaining the reasons why they defected the war or even protested. The film takes account of all the events which took at the war since when it started to the point which the war ended. The anti war campaign that took place on airline hauliers and in barracks in the 60?s really changed the track of the past. It did so well in navy brigs, army ramparts and dirty urban that enclosed military grounds. It made a way into best martial institutions such as West Point and stretched out to the Vietnam theatres of wars.