My difficulty is that this movie concentrates on only half of the story of the use of Agent Orange in Vietnam. The protagonist is a young man whose father participated in spraying Agent Orange in Vietnam and who was not sufficiently warned of the dangers of Agent Orange, even to US troops. The father eventually died of liver cancer.
I feel sympathetic to this young man and of course his father's death was a tragedy for him.
But, the use of Agent Orange was a crime and the father did participate in this crime. The movie does not address the father's moral responsibility.
Another thing which is lacking is the Vietnamese side of the story. Everyone interviewed is white. I found this shocking.
What about the Vietnamese victims?
From www.history.com
"The U.S. program of defoliation, codenamed Operation Ranch Hand, sprayed more than 19 million gallons of herbicides over 4.5 million acres of land in Vietnam from 1961 to 1972. Agent Orange, which contained the chemical dioxin, was the most commonly used of the herbicide mixtures, and the most effective."
"In addition to the massive environmental impact of the U.S. defoliation program in Vietnam, that nation has reported that some 400,000 people were killed or maimed as a result of exposure to herbicides like Agent Orange."
A movie which concentrates on the American side of the story, admittedly bleak, but leaves out the far greater Vietnamese side is not acceptable.