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Factual error: The date on the top of Chef's letter from Eva says, "Sept" with the year conveniently whited out. If the letter was written in September of 1969 she couldn't have known about Manson who wasn't arrested until December 3, 1969. This also dates the movie as taking place sometime in 1970. (01:50:50)

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Other mistake: The map that Harrison Ford points to as Captain Willard recalls back to lunch at General Corman's is an altered prop. The name of the fictitious "Nung River" has been stamped on to the pre existing map of Vietnam using a different colored ink. The actual name of the river can be seen slightly to the left of the stamped in name. (01:18:25)

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Continuity mistake: After Lance and Captain Willard return to the boat Chief Phillips says, "which way captain". As the captain sits on the front of the boat look closely at his tee shirt, he has something underneath resembling a large newspaper or package. When he takes his tee shirt off there's nothing under there except his dog tags. (01:47:55)

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Continuity mistake: Chief Phillips Orders Clean down onto the sampan to help Chef with the injured Vietnamese woman. We hear Clean talking to Chef as they lift her body but the next time we see the Vietnamese woman Chef is the only one there and Clean is back up at his machine gun. (01:38:05)

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Continuity mistake: Back on the boat after the tiger attack, Chef freaks out and yells, "Yes I've had it" and the surfboard behind Chief Phillips' head moves about a foot to the left between shots as he says, "Tiger?" (00:59:40)

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Continuity mistake: As the camera pans along from the rear of the helicopter to the front Chef says to Miss May, "I've got every one of your pictures". Watch very closely as the camera shoots through the two windows on the helicopter's door. The Styrofoam head with the black wig on it that Chef asks the playmate to put on is not up against the left window as it is several shots later inside the helicopter. (01:27:45)

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Continuity mistake: After he sees the sampan Chief Phillips says, "A junk boat Captain. We're gonna take a routine check," and Clean goes from aiming the 60 caliber machine gun behind him to not even holding it at all between shots. (01:34:30)

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Continuity mistake: After Chef looks over the papers handed to him by the people on the Vietnamese sampan, he hands them to Chief Phillips, who puts them under a brown flak jacket tied around a metal roof pole on his left. This brown flak jacket appears, then disappears between shots. (01:35:45)

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Continuity mistake: Captain Willard's is not carrying a holster when he approaches the bridge and talks to Chief Phillips about him not pulling over the Vietnamese sampan or when he's tying his shoes as he sits on the front of the PBR. He never leaves the front of the boat to get his gun but as Clean starts machine-gunning the sampan he's wearing his holster. (01:36:15)

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Continuity mistake: As Chief Phillips orders Chef to, "Check what's in that vegetable basket," the Vietnamese woman runs past and hands him papers that he takes with his right hand. In the next shot as he pushes the woman the papers are in his left hand. (01:36:25)

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Continuity mistake: The Vietnamese fishermen hand Chef the two small pieces of paper that they had in their hands. He reads the first one for a while then grabs the second one from the guy in the middle, leaving them with no papers in their hands. The next time we see Chef two shots later he has only one piece of paper in his hands and is now grabbing a new large identification paper that none of the three had before. (01:35:25)

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Continuity mistake: As Chef pulls the Vietnamese woman out from where she's hiding you can see the shadow of Lance's gun barrel as he stands there holding it on her. In the next shot Lance gets up from a seated position in front of the boat. (01:36:20)

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Continuity mistake: After the boat docks at the Medevac Captain Willard gets out and walks around and it's clear from the wide shot that there's only one helicopter there. When he comes back to tell the guys about the arrangement with the bunnies we see a close-up of this helicopter and it has yellow tipped rotors. The helicopter that Chef and Miss May are in later in the scene is different as it has white tipped rotors. (01:31:50)

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Continuity mistake: As they stop at the Playboy Bunnies' camp, two barefoot soldiers run out to meet them. When they first come out there's a red and white oil drum standing in front of their tent. In the next shot it's overturned but later when they walk back into the tent it's upright again. (01:22:55)

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Continuity mistake: As the soldiers crash the stage Bill Graham ignites the smoke canister and the flashing green running lights above and under the left door of the helicopter are off. In the next shot, as he gets in, they're on. (01:09:55)

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Visible crew/equipment: Just before the Playboy helicopter takes off from the stage the first stuntman who hangs off the skid runs up, taps on the window to signal the pilot, then reaches down for several seconds as he attaches a cable to himself. You can see the second stuntman as he holds onto this cable with his right hand when he pulls the first stuntman's pants down. (01:10:20)

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Continuity mistake: As they pull up next to the Vietnamese sampan Clean runs to the port side of the boat in order to catch the tow rope. Chef is standing behind Captain Willard in middle of the boat and doesn't move and all. In the next shot Clean and Chef are both standing on the edge of the port side of the boat. (01:34:50)

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Continuity mistake: As they come along side the sampan Chief Phillips says, "Look in that forward hooch, bring the people out of there." Clean slips on something and spins the machine gun "Canned Heat" towards the sampan as he ties the boats together. In the next shot the machine gun is spun to the left pointing away from the sampan. This reversal happens several other times. (01:35:10)

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Continuity mistake: As they pull up next to the Vietnamese sampan, Chief Phillips moves the spotlight on top of the PBR with his left hand so it's pointing at Chef as he takes the papers from the fishermen. Thirty seconds later there's a wide shot of both boats as Chef reads the papers and we see the spotlight back to where it was before facing away from Chef even though Chief Phillips doesn't touch it again. (01:35:05)

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Continuity mistake: As he spots the sampan Chief Phillips says, " Clean get on that 60" and the machine gun on the back of the PBR is aiming left towards the shore. In the next shot "Canned Heat" is pointing directly behind the boat. (01:34:25)

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