When the Captain is standing on the carrier deck talking on the satellite phone, an F-18 Hornet traps (lands) on the deck behind him. 13 Seconds later, a second F-18 traps on the deck. It is not possible to reset the cable and clear the deck in 13 seconds, and would be considered unsafe to do so.
When the two fighter-bombers take off from the aircraft carrier in the final battle, they only have drop tanks, no missiles or other visible armaments. As they fly over to the battle, they now have six missiles each.
When they were leaving the village they said it was 12 clicks to the pick up point. Later they said they have gone 5 clicks and have 7 more miles to go. 1 click (kilometer) equals 0.62 miles.
The halo insertion shows two separate types of aircraft. In the side view of the team jumping a C2 Greyhound COD is shown. In the view looking up at the aircraft a C160 Transall is shown.
When the F-18 is launched at the end of the movie it has no weapons loaded on its pylons. When they are in the air they are shown to have a full weapons load.
At the beginning of the movie, when the SEAL team first arrives from another (unstated) mission, Tom Skeritt's character, a Navy captain (O-6), tells Bruce Willis' character to go see the "medic." A Navy man would always say "corpsman", not medic.
In one scene, the Captain of the USS HST is talking on a Radio to the SEALS while on the flight deck near the Landing Zone. As he's talking a E-2 Hawkeye is landing behind him. Although he is allowed in that area, he is not wearing a Cranial Helmet which is required during all Flight operations on any Aircraft Carrier. Even as the Skipper, he is not above the safety rules set in place during flight operations.
The means of communications between Rhodes and Waters is not possible. Rhodes is using a satellite mobile phone whilst Water' unit is using a tactical radio with a satellite capability. It would also be inconceivable for a Navy Seal Captain to have to speak to his troops on a mission from the noisy flight deck of an enormous aircraft carrier with dedicated communication links set aside for those assets in the field.
When the refugees are moving through the jungle there are 2 shots of mandrill baboons among the trees. While this species does live in African rain forests they are not native to Nigeria where the story is set.
The planes providing air support are seen carrying two infrared air-to-air missiles (AIM-9M Sidewinders) and four radar-guided air-to-air missiles (AIM-120 AMRAAM) each, neither of which can be used against ground targets. Even if they could, the effect would not be significant against an enemy concentration of such size. The explosions in the movie look more like an incendiary weapon of some kind though, which is not what they were carrying.
During the first helicopter extraction, there is a clear, flattened path through the grass straight to the helicopter, despite the fact that only Waters, Kendricks, and one other SEAL had walked through. This indicates the actors' movements to the helicopter through multiple scene takes.
Despite being on the run through the harsh environment, Dr. Kendricks maintains eye liner, eye shadow and fresh lipstick throughout the film.
When the tortured woman from the "ethnic cleansing" scene dies and Lena is pulling her eyelids down, the woman's neck is slightly twitching, consistent with a heartbeat or minor muscle movements.
Upon exiting the helicopter in the opening scene, one of the SEAL battle helmets falls off onto the deck and it's left there. As there are flight ops going on, that is considered FOD (Foreign Object Debris) and a danger to all aircraft air intakes. It would have immediately been picked up by a crewman on the deck.
When the refugees are hiding in the jungle as the rebels pass, the sound of the baby crying can be heard but the baby doesn't have its mouth open.
In the end when the people are singing to Arthur Azuka, their mouths don't move, they don't match the lyrics.
After the prince exposes himself and Waters is confronting Lena about not informing him, the camera angle focuses on Lena while Waters is speaking. The timing of his voice and the movement of his jaw is off.
A light-reflecting "bounce board" and crew member holding it is visible in Rhodes' sunglasses as he talks on the satellite phone to waters while standing on the flight deck.
Many of the refugees depicted are Sudanese from the other side of Africa. Ibo tribesmen are Bantu, Sudanese are Nilotics from the East.
Immediately after the initial extraction from the evacuation point that was 7.5 miles from the mission, the helicopters fly over the mission. If it was safe to fly over the mission at low altitude, then why wasn't the evacuation simply conducted at the mission itself? What possible benefit could accrue to the SEAL team or the evacuees by making them hike 7.5 miles through difficult and hostile terrain, for an evacuation about a day later than was possible?
Per U.S. law and military doctrine (e.g., Joint Publication 3-68), U.S. civilian citizens who are not employed by the U.S. Government cannot be forced to evacuate. When Dr. Kendricks refused, she should not have been forced to leave. When LT Waters reported that she did not want to leave, CAPT Rhodes would not have ordered him, even implicitly, to violate her wishes. (This is not a "character error," per IMDb guidelines, because it is a major plot point and there is no indication that CAPT Rhodes or the team is intentionally violating U.S. policy, or that their superiors are ordering them to violate U.S. policy.)
The helicopters from the ship after the final battle take just as long as the F-18s, even though they have vastly different top speeds.
During one of the last battles, one of the SEALS mistakenly yells "Grenade!" when throwing an outgoing grenade. In reality, a soldier will yell "Frag out!" when referring to an outgoing grenade, while the term "Grenade!" is used to warn comrades of an incoming grenade.
DR. Kendricks has been in Nigeria for several years and she is directly told that her patients will be massacred if their group slows down or makes noise that reveals themselves. Yet she continually and angrily complains when the SEALs require that her group do anything that prevents their detection and thus their murders. Either she doesn't understand what is at stake or she is a very foolish person.
During the first few minutes of the final battle, the lieutenant puts a new magazine into his gun and proceeds with the cliché "magazine smack" to make sure it's in the gun all the way. While attempting this, the lieutenant misses the magazine entirely.
During the entire movie, LT. Waters' red dot sight on his rifle is on backwards, and would be useless.
During the briefing, Dr. Kendricks deceased husband is said to be John Kendricks. However, the accompanying slide clearly shows her husband to have been called Benjamin.