Revealing: In the shower room massacre scene, you can see a bullet casing when they show one of the dying Navy SEALS really close-up. If you look carefully, the end of the casing is crimped, which is what a blank round's casing looks like. A real bullet casing would not be crimped at the end.

Factual error: In the scene where Frye and Darrow confront Hummel after he sent the rocket off-course, Major Baxter barks at Darrow: "You're talking to a general, soldier. Maintain discipline." We've been told that all the men are Marines, and that even though they are committing treason, they view themselves as Marines. No Marine, particularly a career officer, would address another Marine as "soldier."

Other: In the scene where Gage throws up in the lavatory, the sink is empty before and after.

Visible crew/equipment: During the Humvee chase, right after the FBI car is on its wheels, you see someone wearing a helmet come out the car. There were no police bikes in the chase so that means it was a stuntman who got out.

Continuity: In the scene where Mason and Goodspeed make their way to the morgue and Mason disposes of a marine with his straight as an arrow knife throw watch very carefully as there is a split second during which the marine appears to sustain the impact of the knife and we hear the sound of it but there is no knife to be seen until the next shot where he is gasping for breath and trying to pull the knife out of his neck.

Continuity: When Goodspeed is driving through the warehouse in his yellow convertible then smashes through the big glass window you'll notice that it's simply not possible.  The window is about a foot off the ground, which means there would have to be a ramp.  If you look closely there are two hinges at the bottom of the window which show where the ramp ends. The fact that there's a ramp at a dead-end window was poorly planted there by the crew.

Continuity: When Sean Connery is in the interrogation room when there's all the commotion and everybody leaves, before he breaks the glass, you can see a yellow mark where he scores and then punches the glass.

Continuity: While in the chamber Isherwood shows his glove and says it is eating them. We see him looking through his helmet at the glove and it is covered in foam, however in the next shot from the outside, there is no foam at all.

Continuity: When the SEAL team is onboard "Raider one" the pilot says "we're going dark" and SEAL commander gives them order to turn nightvision on. However, when camera shows the chopper from outside, there is a beacon light flashing in it's tail.

Continuity: The SEAL Team attempts to take the island in the cover of night. When Hummel expects invaders, he sends out patrols to look for them. In every shot of the patrol searches it is night. Except for one shot where it is pure daylight.

Factual error: In the scene where the F-18s are about to bomb The Rock, and fly low beneath the bridge - why aren't there trails on the water surface? A squadron of fighters with JET engines would do that at that altitude.

Continuity: At the end there are F-18s that have United States Air Force painted on the side of them. There are not, nor have there ever been F-18s in the Air Force.

Revealing: During the big chase scene when the tram is out of control as it hits the last car and blows up you can see rubber tires on it, specially added to let it go on tarmac.

Continuity: When Ed Harris decides to shake things up by firing one of his rockets, the FBI radar tracks the trajectory and determines that it is heading to Oakland. More specifically, the rocket is heading to the Oakland Coliseum where there is a football game being played. But when the movie shows the rocket as it is flying towards its target, the rocket flies over a hill and we see the packed stadium - Candlestick/3Com Park in San Francisco.

Continuity: When Goodspeed is on the roof of the lighthouse with the last pearl configuration of poison gas, one of the 'pearls' drops off the bottom. As he chases it across the roof, from the front shot he has his right hand outstretched. As he dives to grab at it, the shot switches to the side and it is his left hand that grabs the 'pearl'. The shot then immediately switches to a close up of his face and you can again see his right arm outstretched. Submitted by Richard Holmes

Deliberate "mistake": In the scene where one of the captains throws the grenade while Mason is in the bath, it coincidentally rolls to a left into the bathtub area, instead of rolling straight.

Plot hole: When the Seals team swim towards the Rock they are aided by microsubs, which all have headlights that are on. Now, if I was to approach an island in the night, and I didn't want to be seen, I would never have any light on the machines whatsoever, as they must be quite easy to spot from the coast. The light would be reflected at the surface and would be detected in the blackness that is all around. They do not need lights, all they need is modern technology to direct the subs, which they have.

Continuity: After the shower room scene where everyone's killed, Hummel and his men are checking out the bodies. They find a soldier who is still alive. Hummel then speaks in the camera on the marines left soldier. The film then cuts to the command center in San Fransisco. A man looking at a screen points at it and says "Look at this." In the shot, as he points to the screen you can clearly see it as being a radar screen, but in the next shot it turns to the screen with all the marines' camera's views on it.

Revealing: As Mason is interrogated, he breaks the window. Prior to that he takes a coin and draws a circle on the window. The purpose of that must be that when he uses force the window will break where he has made the circle. That does not happen. The window breaks in the center of the circle, not at the rim as intended.