The Lagos Times is shown during the opening credits. The Lagos Times was created on November 10, 1880, by Richard Beale Blaize, and was made defunct in November 1883. Thereby making it impossible to be featured in the film.
When Sandecker is talking to Carl, and he's about to ask him for a favor, and Carl says, "... it's strictly hands-off" his mouth doesn't match the words, and his mouth continues to move after he's finished speaking.
When they climb onto the train car, there are rails/handholds on it - in fact there are similar rails on all of the cars along the entire train - but when we see them on top of the car climbing down the hatch, nearly all the rails are gone.
When Dirk is getting pulled over on the river he throws the soldiers a rope which they tie to the near side. When Al floors the yacht the rope is on the other side of the soldiers' boat, thus flipping the boat.
On the river, after Dirk jumps from the boat back to the yacht, he starts to clamber up the side of the boat. He puts his left foot over the side twice, and the second time, there is a rope around his ankle that wasn't there before.
Al, Dirk and Eva get on the train one at a time and the guard at the end of the train sees the now-riderless camels one by one. While Eva is getting on the train, the scene switches to view from the rear of the train. All three camels are seen close together. Shortly thereafter, the scene switches again to the view from the train, and the camels are separated by some distance from each other. The camels would not have been that close together unless all three people had boarded the train simultaneously.
When Pitt is thrown from the yacht to the patrol boat, initially they were head to head with the patrol boat which nearly sideswipes them. Pitt is thrown to the other boat by the collision. the subsequent shots all show the yacht and the patrol boat going in the SAME direction rather than on opposite courses.
As they are having dinner while going up the river just before the camera cuts to behind Dirk, Eva reaches for the bottle, as we look over his shoulder she's sitting back against the cushion. When the camera switches back to face Dirk they talk, then it switches to over his shoulder and she takes a swig from a glass, that she never had a chance to fill, and which wasn't even on the table.
There are numerous historical errors in the exposition. The following four are the most notable. 1) The model shown of the "CSS Texas" is that of the Virginia (commonly and improperly called the Merrimack). As this was built on the salvaged hull of the only federal steam frigate available to the Confederacy, its design was unique. 2) None of the Confederacy's casement ironclads were capable of transoceanic travel. a) They did not posses the seaworthiness necessary for such a voyage. b) None had the fuel for more than a few days of steaming, which is insufficient to even begin to cross the Atlantic Ocean. c) The engines in all of the vessels were not dependable enough to function for the time required to cross an ocean. 4) The James River, down which the "CSS Texas" was supposedly sailing, was closed by physical barriers installed by Union forces to prevent exactly what is shown. A few months before the "CSS Texas" is supposed to have sailed, a squadron of three ironclads, plus other vessels, attempted to force their way down river, only to be turned back. All were later scuttled to prevent their capture.
Just after entering the Texas, Dirk Pitt claims the walls are two feet thick (correct for a typical Confederate ironclad) of steel (incorrect, the sides would have been oak with an overlay of a few inches of iron plate). When the bullets penetrate the sides, it is obvious that they are not two feet thick.
When the sarcophagus is brought out of the water the admiral says "the king has an appointment at the museum in five hours". When we see the king at the museum it is completely clean. This type of work would take weeks if not months to complete.
The entire opening sequence of the bombardment of Richmond at the end of the Civil War is inaccurate. Richmond was never bombed like this. The Union troops were massed on the outskirts of Richmond and poised to invade. The burning of Richmond that is a familiar sight was the result of self-inflicted torching of warehouses intended to prevent the Union Army from taking supplies held in them. The fire quickly spread to engulf much of the Riverfront area.
During the Civil War, the James River at Richmond was not deep enough to float an ironclad. This is why a group of Confederate warships were burned well down the river to prevent their capture as the Union army advanced on the city.
During the opening credits (after approx 4.5 minutes) a newspaper titled "Nouvélles de Monde" (French) appears. "Nouvelles" (news) is misspelled (there should be no accent). Moreover "Nouvelles de Monde" is not correct, the adequate form is "Nouvelles du Monde"
When the Arab scholar reads from a scroll, he says the unknown ship was flying a flag with a single star. While the flag of Texas would have had a single star, it would not have been used by a ship of the Confederate Navy. Rather such a vessel would have flown the Confederate Naval Ensign and Naval Jack, both of which had thirteen stars.
When Dirk swings from the camels neck, a "hobble" or rope limiting the camels movements is seen pulling out of the sand. It is attached to his right rear leg stretching to a point "off camera" beyond the left side of the frame.
When Dirk, Al, and Eva are driving away from the attack helicopter, in the close up shots, the driver's side is correctly on the right. However, in the longer shots, as the car skids right before entering the desert building, the driver and steering wheel are on the left side. It also appears that only the stunt double is driving the car.
When Dirk and Al are handcuffed to the back of the pickup truck, Dirk uses his Confederate gold coin to unscrew the truck bed. The coin is still shown in his hand after he obviously gives the coin to Al and before Al could possibly have given it back.
As the CSS Texas sets sail from the dock at Richmond she is shown flying the first version of the Confederate national flag. At the time claimed she would have been flying either the second or possibly the third national flag. The shots are from a movie involving the CSS Virginia, which would have flow the first national flag.
At the end of the village firefight/fistfight, when Dirk rolls in the sand and grabs what appears to be a Barretta M9, he fires four shots and the gun is empty. No handguns were used until this point, and the slide remained motionless, signifying a rubber gun.
The goof items below may give away important plot points.
After the first explosion in the Texas, before Dirk says, "Bring down Kazim, the army will surrender," they all gather and kneel behind the cannon. Eva kneels and puts her left hand on her right shoulder. The next second, she is kneeling upright.
When Dirk, Al, and Eva take cover in the CSS Texas, they are being shot at. When Dirk claims the walls are 2 feet thick with a double steel coating, there are no bullet holes, even though you hear the bullets hitting the walls, but when they get shot at again, the bullets go through the walls, and the team has to duck. Later in the scene, they are shot at again and the bullets don't pierce the sides.
When taking cover in the inside the discovered CSS Texas: When the helicopter was strafing the CSS Texas with bullets, the bullet pattern is not consistent with the type of guns that the helicopter was armed with, nor the rounds per second, nor the velocity/vector that the helicopter was moving- more precisely, the pattern was too wide and uniform to originate from the mounted side arms of the helicopter.
Dr. Hopper is shot; after Dirk and Al save Eva from the attackers, she runs over and hugs his body. She rips open his shirt, and when she does, there is no bullet wound under the blood on his shirt. Also, the blood on his shirt shows only one 'bullet wound', though he was shot three times at close range.