Continuity mistake: As the boat leaves the USO show at Hau Phat Captain Willard says, "The war was being run by a bunch of four star clowns who were gonna end up giving the whole circus away". He says this as he walks to the back of the boat moving the 60 caliber machine gun on his way so that is faces frontward. In the next shot it's been moved and is now facing sideways.
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.
Continuity mistake: On the boat Captain Willard reads newspaper clippings about Colonel Kurtz' and thinks to himself, "38 fucking years old " and he is sweating profusely, with sweat dripping off of his face and neck. However, his right hand is perfectly dry when he lifts a flashlight and moments later a cigarette.
01:01:00 - 01:02:50????