Continuity: After the train comes to a complete and lurching stop, the porter is shown being thrown forward into the bad guys as a lot of baggage falls all over the place. In the final fight scene as Ryback is entering the dining car, all the tables have all their place settings perfectly intact.

Plot hole: Now why the heck is one of the stealth fighters anywhere near the train? Stealth fighters use advanced targeting and do not need to be anywhere near their target, yet in the movie the one fighter is so close to the train when it gets blown up that it looks like it's on a collision course.

Factual error: The footage of the "Nevada Petrol Express" actually is of a similar operation that used to run over the Tecahapi Pass in Southern California. And "Espee" terminology never had "Petrol" in its language.

Visible crew/equipment: When Ryback throws the exploding bomb into the car that the bad guys are in, one of the guys bursts into flames and you can see the white fire safety mask that he is wearing.

Factual error: When the porter first gets ready to shoot at the terrorists (after Ryback falls off the train) he goes through a series of verbal instructions to remind himself what to do. The very first thing he says is "safety off". The problem is that the gun he is using is a Glock pistol. Glocks use a device called a "safe-action trigger" but they don't have a manual safety that you turn on and off.

Continuity: In the scene where Casey Ryback is heading towards the start of the train, Penn asks his henchman to check the roof of the carriage. In the first shot a man gets up off his seat and another one takes his place. In the second shot when the man is outside making his way onto the roof, you can clearly see that the other man has not moved from his position, let alone taken his place.

Continuity: When Ryback kills the guy coming out of the bathroom the lady who showed her broken bra to the bad guy stands in the corner with her hands covering her face, then her hands are on the side of her face, then her hands are back to covering her face.

Revealing: When the villain finishes his 1st appearance in the Pentagon's videowall (with the fake Eiffel Tower on the back), the screen turns black when he finishes his statement. However, when the camera turns to the Army men present, you can see the reflection of the villain's face on the glass.

Continuity: When Bobby Zachs steals the CD, Ryback is seen with him outside the train car making their way to the next car and the train is still going about 40 miles per hour. The scene changes to back inside the train with the bad guys and the window in the background shows the train traveling about 5 miles per hour.

Continuity: When the train stops before the terrorists shoot the engineers the train stops on the switch track. But when we see the terrorists with the red flags the switch track is behind them.

Continuity: This happens when they stop the train in order to get the CD that was confiscated by Steven Seagal. A moment or two after the train comes to a complete stop, Travis Dane explains how important the disc is - if you look behind him you can see the scenery outside the window still moving very quickly.

Deliberate "mistake": During the scene where Ryback is fighting Penn (the grey-haired mercenary) in the kitchen, watch for the shot where Ryback flips Penn. The film has been sped up and the result looks disjointed and out of place. The characters are moving FAR too fast for it to look natural. Submitted by Guy Brigman

Revealing: In the scene where Ryback is fighting the grey-haired bad guy in the kitchen, the bad guy is losing and spots a meat cleaver on the counter. When he quickly picks it up, holding it at head level, you can see the cleaver blade wobbling from side to side. An obvious rubber prop.

Plot hole: When Casey determines to hot-wire the Chevy truck, he raises the hood, grabs two bare wires on the passenger side of the engine, rubs them together, and the truck starts. However, this is patently impossible since the ignition is in the off position. The engine might crank, assuming he magically found the hot lead to the starter solenoid, but it would not start.

Continuity: Dale Dye's character Capt. Garza is listed as Capt. Darza on the credits.

Continuity: As Ryback approaches his fight with Penn he unloads his gun and puts the empty gun on the table (separate from the cartridge). But then as he runs through to free his niece he picks up the unloaded gun and then uses it shortly afterwards without ever reloading to shoot Dane.

Audio problem: At the beginning of the movie, the terrorists start take over the train, Ryback beats up a terrorist and throws him out of the train then some guy says something into the radio like, "we got one casualty", his mouth doesn't match what he's saying.

Visible crew/equipment: At the beginning of the film when all the personnel leave the control room, you can see the boom mike visible in the reflection at the top of the glass.

Continuity: When the kitchen is shot at by the bad guys, the chefs inside do not get hit as you can not see any blood, but when it goes to close up, they are ridden with bullets and blood is everywhere.

Other: In the scenes that show the satellite in space, there are collision lights visible. It's not like there is anyone up there that is going to fly into the satellite if they didn't see the collision lights.