Continuity mistake: After Captain Willard looks at the picture of Colonel Kurtz being decorated by General Westmorland, they're all startled by the "Arc light" B-52 strike, note the rear machine gun is pointing forward and a helmet is hanging from the middle machine gun. In the next shot the rear machine gun is pointing aft and the helmet is now gone. (00:24:05)????
Continuity mistake: The actual napalm attack burns quite a large area of the tree line and just two shots later Colonel Kilgore speaks the famous lines, "I love the smell of napalm in the morning!" At this time, when we see this area is still smoking, quite heavily, however, the amount of destruction is much less and there is very little fire visible. (00:48:55)????
Continuity mistake: Captain Willard says, "Whatever was going to happen, it wasn't gonna be the way they called it back in Nha Trang". Note the light pole in the center of the boat, the second blue light from the top is shot out however there hasn't been any battles since the French plantation scene when all four blue lights were intact. (02:21:25)????
Continuity mistake: In the boat Captain Willard reads more about Colonel Kurtz' and fingers through his three Green Beret applications. Right after the captain says, "But when he threatened to resign, they gave it to him," he stops on a prop sheet that had the real names and dates erased and new names and dates typed in using a different typewriter that has darker numbers and letters. (00:01:25 - 01:01:25)????
Continuity mistake: In the scene where they stop the junker boat that they think might be smuggling supplies, as you watch the many scene angles, you can tell that the sun is at different points at different times. Where Willard is sitting at the side of the boat the sun is nearly set, and at one point is below the horizon. At another time, you can tell, the sun is several degrees above that, and in one angle, it is practically noon. Also, the boats change angles, toward the shoreline, possibly to shoot a scene from a better light angle. (01:34:08)
Continuity mistake: Captain Willard is wearing green, tan and black camouflage trousers on the PBR when they spot Kilgore's air-cav unit. They immediately proceed toward shore and as he jumps off of the boat he's wearing different camouflage trousers, which are brown and green. (00:24:15 - 00:25:15)????
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)????