Sir! No Sir! (2005)
Sir! No Sir! is a 2005 documentary by Displaced Films about the anti-war movement within the ranks of the United States Armed Forces during the Vietnam War. The film was produced, directed, and written by David Zeiger. The film had a theatrical run in 80 cities throughout the U.S. and Canada in 2006, and was broadcast worldwide on: Sundance Channel, Discovery Channel, BBC, ARTE France, ABC Australia, SBC Spain, ZDF Germany, YLE Finland, RT, and several others.
More at Wikipedia.