Factual error: At a stop on the Niger River, before they arrived in Mali, Dirk tells Dr. Rojas of "the angel wing clam" and calls them "Petricola Pholadiformis" and says that "this river is the only place on the earth they are found." Three problems: First, Petricola Pholadiformis are actually called "False angel wing" and are found many places in the world in fresh water (but seldom in the Niger River). Second, what's known as the "Angel wing" shell (no "false" in its name) has "Cyrtopleura Costata" as its scientific name. Cyrtopleura Costata ("Angel wing") is found in salt water. Third, Dirk also said they "glow in the dark"; some varieties of Cyrtopleura Costata shells will glow if exposed to ultraviolet light but none glow from their own internal source. Petricola Pholadiformis shells don't glow at all.
Revealing mistake: When Al is running from the fire in the incineration chamber, fire is shooting out the back. When the fire goes away lights can still be seen in the chamber entrance. The fire should have incinerated them, because this area would be sealed off from the hot area during normal operation.
Trivia: When the boys land at the bottom of the hill under the truck bed, there is a wide shot. If you look closely in front of them, there is an object in the sand. This is the skeleton of Kitty Mannock who was in the plane that crashed. In a deleted scene they notice and examine the skeleton. The producers didn't take it out of the shot.
Trivia: It's ironic at the end that Admiral Sandecker states that he is done with politics, because later in the Cussler books, Sandecker is appointed Vice President of the United States.
Al Giordino: Hey, you ever been after marlins, doctor?
Dirk Pitt: Oh, no, not the marlin story again, Al.
Al Giordino: Seven hundred and thirty-three pounds. Five and a half hours in the fighting chair.
Dirk Pitt: I thought it was 600 pounds.
Al Giordino: Hey! What did you catch that day? I can't remember anything at all.
Question: In the scene where the three main characters are in the Texas and are being bombarded , Dirk claims that the plates are 2 feet thick. They then discover the use of armor-piercing shells. Does he mean 2 inches? I believe the boat would sink if they were indeed 2 feet thick.