Continuity mistake: Clean's burial is two minutes of uninterrupted action. When they first carry him over he's on a bamboo stretcher. One of the soldiers proceeds to take the flag off of him then another puts it back on. When we see his body again a few seconds later the flag is in exactly the same spot but the stretcher underneath is gone. (02:00:45)????
Continuity mistake: As Hubert stands at the window he says, "The generals and the colonels believe it's impossible for the Viets to get the cannons up there in the mountains". It's clear to see that all the windows are closed but the next time we see them the second one from the bottom is open even though no one has gone near them. (02:08:55)????
Continuity mistake: When Captain Willard flies in by helicopter to meet up with the PBR at the Texaco fuel depot, we see only one PBR with a flag waving in the front and a radar dome on the back of the roof. This is not the same boat that we see in the next shot in which the flag and radar dome are reversed. (00:19:25)????
Audio problem: On the boat while reading Kurtz' file Captain Willard says to himself, "The charges are unjustified, they are in fact and in the circumstances of this conflict, quite completely insane". In this shot they show the Captain reading the letter to himself but looking at his lips the words he is mouthing do not go along with what he's narrating. (01:21:20)????
Continuity mistake: Captain Willard and the men get off the PBR and walk to their right about 30 feet in the direction of the hut that is destroyed by the boat with the teeth painted on it. In the next shot when they run into Francis Ford Copola they're back to where they started as we see the boat directly behind them. (00:25:50)????
Continuity mistake: There's a pole stored on the port side of the PBR. It's behind Chef after we see Clean's dead body. It's been removed in the next scene when they arrive at the French plantation. This pole has been used before in the movie and is stored in this spot and if it were somewhere else on the boat we would see it. (01:52:25 - 01:55:30)????
Continuity mistake: Clean's dog tag and cross change between scenes. When he first hears the "Arc light" B-52 strike we see the cross hanging at the same level as the dog tag then when he meets Colonel Kilgore the chains have been rearranged so that the dog tag is two inches lower than the top of the cross. (00:24:10 - 00:30:05)????
Continuity mistake: Before the napalm attack as Colonel Kilgore gives Lance a pair of shorts to wear while he's surfing, there is yellow smoke visible on the beach between them and the other side of the bay. As the jets fly by and this spot is again visible the yellow smoke canister is not there. (00:48:35)????
Continuity mistake: When Francis Ford Coppola appears in the movie as a TV director, he asks the captain to, "Just keep on going," and a small boy is playing on a black Agent Orange drum in the background. If you watch the labeling on the drum you can see that it's been moved between shots. (00:25:50)????