Factual error: In the first scene, the math problem is wrong. It says "Grave buys a bag of 240 jellybeans. There are 35 yellow ones, 52 red ones, 63 green ones, 26 white ones, 41 blue ones, and 40 black ones." That is 257 jellybeans not 240. Don't ask why I stopped and did that math.
Factual error: When Cam ambushes Ba'al in 1939, he has two Thompson M1 submachine guns. The M1 version of the Thompson wasn't developed until 1942.
Factual error: When the captain is arguing with the Armed Services Committee chairman, Homeland Security is mentioned. However this movie takes place prior to Desert Shield, and the Department of Homeland Security wasn't created until over a decade later.
Factual error: When Harvey sets up his very obvious "SOAP box" and gives his first speech, modern vehicles can be seen parked along the curb behind him, most obviously the small US Postal van and UPS truck. A little later, a 2000s era black SUV is at the curb when Harvey steps out of his camera shop.
Factual error: When Mathias is getting his legs cut off, he's raising his head and shoulders off the ground, although his back is broken.
Suggested correction: Depending on where the break is, this is possible.
Factual error: The Volkswagen Campervan that is used at the beginning of the film has a Zürich number plate, yet the cantonal coat of arms to the right of the number plate is that of the canton of Ticino (red and blue stripe). This is incorrect: The coat of arms should have been a white-blue stripe, which is the coat of arms of Zürich Canton and would correspond correctly to the number plate.
Factual error: When Virginia is attacked by Gosta's cats and throws herself down the flight of stairs to get them off her, her clothes aren't ripped or messed up afterward the way they should have been after such a vicious attack.
Factual error: When Emma and Richard decide to call off the wedding, to provide an excuse to evacuate the church they light a small fire to set off the sprinkler in the side room they are in, but the sprinklers also go off in the main area of the church, forcing all the guests to leave. Sprinklers are individually heat-activated, and one going off in response to a localized fire would not set off sprinklers in other areas.
Factual error: Ben stops at a rest area near Hope, BC. He is headed for Vancouver and Vancouver Island. Leaving the rest area, he turns right, as he should, to head for Vancouver. The highway sign points left for Hope, BC, and right for Vancouver. I've been at this rest area, and the direction he turns toward Vancouver is correct. However, the next shot shows him going through Hell's Gate tunnel, which is north of Hope. He would have had to turn left, go through Hope, and 40 or so miles north to go through the Hell's Gate tunnel. The next scene shows him on the ferry to Vancouver Island, which was in the direction he was headed when he turned right from the rest area. There would be no reason for him to turn around and go through the tunnel, as he was already heading in the right direction.
Factual error: There is an ostrich that releases an egg on to his plate, however the bird is a male as females are brown and this one was not.
Factual error: Spider's club is shown on 125th Street in Harlem, but whenever the officers radio in the location, they say 184th & St. Nicholas, which is in Washington Heights over 3 miles north.
Factual error: The movie is supposed to be set in Texico New Mexico, however there are mountains in the background. The closest mountains are near Albuquerque, NM while the area surrounding Texico is completely flat.
Factual error: When the college students are shooting pedestrians with paintball guns, the guns don't have ball hoppers which hold the paintball ammo, hence no ammo. Yet when the camera angle changes, it shows pedestrians getting hit by paintballs.
Factual error: One of the women in the group picks up a piece of calcite (Iceland Spar variety). It is obviously calcite because of the very obvious rhombohedral cleavage and other visual indicators. The sample is later identified as ringwoodite. Ringwoodite is cubic with no reported cleavage. Even if it did exhibit cleavage, it would not be rhombodedral.
Factual error: When Mulder avoids hitting the truck, in the shot from the inside of the car he turns the wheel full left which means that the car should start to spin anticlockwise. However, in the next outside shot the car spins clockwise. (01:16:25)
Factual error: Near the end of the movie, a front view of the overdosing/overdosed twins shows Robert putting the dying twin's head on his lap. A close-up of the dead twin shows blood covering most of the left side of her face and a blue tinge on most of the right side, apparently meant to indicate developing livor mortis (bluish color after death). This twin just died, so it is too early for livor mortis to be visible. Livor mortis is not visible to humans until about two hours after death, but the process does begin sooner (about 20-30 minutes after death). Moreover, the writer failed to show the first stage of death - pallor mortis. The twins were Caucasians with blonde hair, so the dead twin would first turn pale (from blood draining from veins in the skin) about 15 minutes after death. The sudden oozing of blood from the dead twin's forehead was also not an accurate portrayal - she was dead, so her heart no longer pumped blood (so gravity takes over, draining blood). (01:39:58)
Factual error: When Natalie decides to rebuild the carburetor that Keith gave to her, she opens the rebuild kit and starts lying out the parts. The problem is that the kit is for a French Solex type 30 single-barrel carb, and the carburetor in the box is a domestic four-barrel.
Factual error: In the streetcar scene a passenger is a soldier wearing a US Army green uniform with a CIB, Comat Infantry Badge. At the time US uniforms were brown and there is no plausible reason for this US soldier to be in that country.
Factual error: During the opening credits. An LCD screen is shown with lat/long coordinates. The movie takes place in the Persian Gulf. The coordinates are in the vicinity of Oceanside, CA.
Factual error: The "corn" they are growing is not corn, just crabgrass.