Factual error: As Preacher and Hull ride out of town for first time, Hull offers "3 hots and a cot." Earliest reference of this term is in the 1930's.
Factual error: If the access hatch to the nose wheel well on an airliner was opened at any time during the flight, every alarm panel in the cockpit would light up like a Christmas tree. In this case happening within seconds of takeoff the pilot would immediately declare an emergency, turn around and land at the airport he had just left.
Factual error: The electric guitar Marty plays at the "Enchantment Under the Sea Dance" is a Gibson ES345. This guitar model debuted between 1957 and 1958 yet he's supposedly playing it in 1955. It would have been more accurate to have him using a Fender Telecaster (1950) or Stratocaster (1954) or a Gibson Les Paul (1952). (01:23:50)
Factual error: When Rambo plays possum then suddenly takes out the Russian officer's Hind Helicopter he uses an M72A2 light anti-tank weapon (LAW). When fired, the M72A2 has a back blast that can kill out to 100 feet, which means he would have either blown up his own helicopter or killed all the MIA's he had rescued...
Factual error: The train consists of four locomotives, but close ups beaneath the train show the wheels of freight cars.
Factual error: The tiny missiles on the F16 are shown as being attached to some sort of flexible metal framework which bends and shifts as the plane moves along the ground. The F16 is a supersonic fighter - any such thing would be ripped clean off the wing at speed. The missiles carried by the F16 are attached to streamlined 'hard points' under the wing, or the wingtips themselves.
Factual error: Drago is presented as an infantry Captain in the Soviet Army. However, during the press conference his shoulder bars are the same as a soviet Colonel, not a Captain.
Factual error: When Bond crashes the snowmobile he ends up in a ditch to escape - he uses the front ski, but when he knocks the two soldiers over he is skiing uphill - no way to manage this from a standing start in a ditch. (00:03:07)
Factual error: The KGB agent hunting Jonathan is carrying a Spanish Campo-Giro pistol. There's no way a KGB agent would carry a foreign sidearm in a Soviet Bloc country, especially one that was phased out of service in the late 1920's.
Factual error: During the big final battle of the movie the bad guys throw around Molotov cocktails, bottles with a rag stuffed into the top of it filled with gasoline. Problem is that the cocktails explode and shatter glass, when in reality Molotov cocktails don't explode they simply smash. And on top of this the first few cocktails that were thrown at parked cars weren't even on fire, rendering them useless.
Factual error: After the car chase in the film, as the car leaves a mess of vehicles behind it, it is obvious that the directional flow of the "props" traffic was on the left side of the highway, as if the film was shot in England. But it was shot in USA. The direction signs on this Los Angeles highway are also not visible to the traffic. Drivers would have to look back to see what exit they just missed.
Factual error: The fence surrounding the HARP facility that Remo and Conn break into is supposedly electrified. Not possible - it is a standard chain link fence affixed directly to aluminum posts driven into the ground. If it were electrified it would have to be insulated from the posts; the way it is shown in the film, the electricity would shunt into the ground. When the front-end loader hits it, a plume of firework-like sparks erupts from the point of impact. Also not possible - there was nothing in the bucket of the loader to detonate and the metal hitting against the electrified fence would, at most, cause some small electrical arcs.
Factual error: The movie takes place in Corpus Christi, Texas located in Texas' southern section. Characters are shown speaking with heavy southern accents despite most real life residents sounding nothing like this.
Factual error: Quatermain and Jessie are on the roof of the caboose of the train. The train engineer slams on the brakes because there are elephants on the tracks. Instead of being flung forward as the train slows, Jessie is flung towards the rear.
Factual error: When Auntie sees Max through the periscope she zooms into him, but the lens is fixed and crude and shows no such zoom feature.
Factual error: When Col. Yin threatens to execute Cpl. Opelka, he draws a semi-automatic handgun, racks the slide and hands it to a subordinate. The subordinate puts the gun to Opelka's head and pulls the trigger but nothing happens because the pistol isn't loaded. He racks the slide again and puts the pistol back to Opelka's head and Opelka looks terrified as again the trigger is pulled and nothing happens. This is a mistake because if there were a round in the magazine the first time the slide was cycled it would have been chambered. If the weapon wasn't loaded the first time it was cycled, they could have cycled it all day long and it wasn't going to chamber a round. And a Special Forces soldier like Opelka would have known that.