Factual error: Peter Coyote describes the killer as "not a psychopath. He's an ice man," implying the killer is too calculating and manipulative to be considered a psychopath. This is a common misconception: a cool and calculating manipulator is exactly the standard profile for a psychopath. Most people who make this mistake are usually conflating psychopathy with psychosis (or being "psychotic"), when those are actually two separate and quite different conditions.
Factual error: When Steel (the bearded soldier) is cornered by the zombies, he realizes he's doomed and shoots himself in the head. The problem is he is using a Colt M1911 series handgun and the hammer was up when he shot himself. The gun has to be cocked before it can be fired. (01:30:00)
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: 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 the bishop is told Navarre is back and the bishop from the balcony claps and orders for Cezar, the portico behind the servant has a sprinkler pipe running from the first column to the opposite wall. Kind of advanced for a medieval castle. (00:33:00)
Factual error: Harlan's car has a Roots style supercharger. They can't be "turned on and off" as shown. There is no carburettor or fuel injection lines shown between the scoop and the compressor.
Factual error: When the aliens first take over the Thunder Road, Wolfgang says that he will reverse the "x-axis diode" to make the computer think they are traveling in the opposite direction. However the outside view shows them moving up and forward at a steep angle, ie moving up on the Z axis and forward on the X axis. If they X axis diode was reversed then the Thunder Road would still be ascending at the same rate, simply in the opposite direction (basically changing from moving forwards and climbing to moving backwards and climbing) . To make them descend, he would have to reverse movement on the Z axis. Considering it's shown on screen that Wolfgang designed the interface to make the sphere move on XYZ coordinates, he would know this.
Factual error: When Anthony Michael Hall is being pursued by the police, they have the logo of City of Los Angeles, but this takes place in Chicago. (01:18:40)
Factual error: When Cressner falls and lands on the horn, it makes the same pronounced honk sound as when he had honked it at Norris. In reality this wouldn't be possible because the bell of the horn was compressed on landing when Cressner threw it out the window earlier, so the sound would've been higher pitched, if it was still able to make a noise at all.
Factual error: The supercharged "Honda 750" motorcycle is actually a Honda Rebel 250.
Factual error: Swain was leading to Shute 9-13. He got an escape, then a takedown, then a fall. The score should have been 12-13 when he got the fall, but the scoreboard still showed 9-13 after the match when he was celebrating with his team. (01:43:33)
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 Kirby sees Dale at the ER, he says "You were a senior when I started at Georgetown." That's just three years between them and the gang just graduated from Gtown a few months ago. Dale should still be in med school, years away from becoming a doctor.
Factual error: During the scene where the laser is used to heat the popcorn in Hathaway's house, the laser hist the ground, works its way up the side of the house and then settles on the window. At that point it stops moving. This seems impossible since the laser is being fired from a moving airplane and would constantly need a slightly different angle in order to keep hitting the house in the same spot.
Factual error: During the movie they play two Patsy Cline songs, Crazy and Leaving On Your Mind.Problem is Desert Hearts is set in 1959.Those two songs were released several years later, Crazy in 1961, Leaving On Your Mind in 1963.