Continuity mistake: When Colonel Kurtz says, "And they call me an assassin," the statue in front of the TV casts its shadow on the left of the picture tube. The lighting doesn't change throughout this scene but the next time we see it the shadow is one quarter of the way to the center of the picture tube. Later the shadow moves back to the side of the TV again. (00:13:55)????
Continuity mistake: Captain Willard enters the temple after he kills a guard and there's a great shot of him holding the machete as it glistens in the light. He just slit someone's throat not two seconds before and there's not an ounce of blood on the blade and it's not even the same machete he was holding three shots ago when we see his silhouette in the festival lights. The first machete we see has a thinner blade with a hook on the end of it and a different handle. (03:07:05)????
Continuity mistake: Just before the warrior throws his spear at Chief Phillips there's a shot of Lance at the helm of the boat and we see the right side of the arrow in his hair pointing straight out and the left side pointing upward. In the previous shot both sides of the arrow were pointing straight out. (02:22:25)????
Continuity mistake: As Chef shows Chief Phillips and Clean the picture in his Playboy magazine of Miss December you can see the USO stage behind them. In the previous shot of the boat leaving one of the six tall lipstick statues on the upper left of the grandstand was knocked down. Now as the boat departs all six statues are standing. (01:11:50)????