Continuity: After Kotz was killed, Willard looked through his manuscript and the thickness of the paper changed.
Factual error: The maximum weight of a Huey helicopter is 10,500 pounds. For this type of model, it is impossible to pull up a river tanker (PBR), because these ships can weigh between 15,000 and 19,000 pounds.
Continuity: After the awning on the ship was destroyed, it was replaced by some large leaves. The canopy reappeared when they were under the bridge. After a subsequent set of shots, the awning disappeared again and replaced by a large leaf.
An error was discovered: "Clean" wanted to play the tape of the recorded letter sent by his mother, and took out a tape recorder without batteries.
Error found: When Willard was reading some news reports about Kotz, one of the articles was about a dispute between West Germany, Iran and the United States on nuclear energy issues. This has nothing to do with Kotz.
An anachronism: Kotz’s honours are recorded in his personal files. One of them is the flight of the Cobra gunship that planned a celebration event (or military parade) on "August 30, 1965". However, the first prototypes of the Cobra gunship did not start flying until September 7, 1965.
Continuity: After Clean was hit, the blood dripping on the ship's sails sometimes disappeared.
Factual error: Throughout the film, you can often see the Viet Cong use tracer bullets, especially when the PT ship is attacked by enemy fire, it can be seen in red. In fact, the Viet Cong uses green tracking ammunition, while the U.S. military uses red tracking ammunition.
