Regret to Inform is a war documentary movie. It is about the widows of the Vietnam war. An American filmmaker's husband was killed in the Vietnam war. She goes to that country and her translator is a Vietnamese woman whose husband was also killed in the war. This documentary focuses on the human lives lost during the war. It also traces the cost to the survivors of those who were lost. Both American and Vietnamese widows are interviewed. This movie documents the staggering human cost of lives in the Vietnam war. These losses were of soldiers on both sides. The losses were also to the widows of those who fought.