Continuity mistake: Just before the Jackal jumps in front of the subway train, you can see the train's shadow on the wall behind him all the way back. But in the next shot as he's sprinting to make the jump, the shadow is gone. (01:47:35)
Continuity mistake: The Jackal leaps in front of the metro train to get on the other side as it passes as he is attempting to escape Declan. As he lands, the train skids to a stop and you can see a red reflector or light close to Jackal's head, with one of the doors of the train by it. After it cuts to Declan trying to get through the train, then back to The Jackal getting up, the number 81,622 suddenly appears next to the train door which was not there in the previous shot. (01:47:45)
Factual error: After the Jackal jumps to the other side of the metro subway train to get away, Declan pulls out his cellphone and makes a call. However in 1997, when this movie was made and the time it takes place, there was no way you would be able to get cellphone reception in a subway station underground. (01:48:00)
Factual error: Richard Gere chases Bruce Willis into the Capitol Heights Metro station, and the final showdown occurs at Metro Center - 9 stations and over 7 miles away. Hardly plausible. (01:48:20 - 01:50:20)
Factual error: Just before Declan and the Jackal start shooting at each other in the subway tunnel, one of the trains starts coming from the opposite direction and begins passing Declan. This train continues to pass him at full speed for a full 35-40 seconds while they shoot it out. Subway trains are not nearly long enough for that. Also, during this time another train comes from behind him and he has to get between them and hold onto the light for a few seconds while they pass. But the second train then passes first while the first one passes fully about 2 seconds after the second one came... and it got there first, by about 15-20 seconds. Subway lines are about the same length as each other as well. But the first one was way longer and way wrong. (01:49:30 - 01:50:05)
Revealing mistake: When Declan first starts trying to shoot at the Jackal, his timing of trying to simulate the kick of the gun is off. The kick and shot would be simultaneous but there is a slight delay in his reaction. (01:49:35)
Continuity mistake: Declan gets a good shot off on the Jackal's leg that hits through the concrete wall. However when it cuts to the next shot the Jackal is holding a different part of his leg than where he was shot, and the hole in his pants and blood are gone. (01:49:45)
Continuity mistake: When the second subway train is coming from behind Declan and he jumps between the trains to avoid them, he grabs onto a light that is green. However, these lights turn red as soon as the trains start to pass them, and one was already passing it. The light continues to stay green while Declan holds onto it between both trains. (01:49:50)
Continuity mistake: When The Jackal comes out of the subway tunnel and steps onto the platform, he shoots a subway cop coming towards him. The cop falls backwards with his head pointing away from the subway tracks. In the next shot, the camera is in front of The Jackal and we can see the cop in the background with his head pointing towards the tracks now. A couple of shots later, Declan comes out of the same tunnel and checks the cop to see if he's alive, and the cop's body is back to its original position with the head pointing away from the tracks again. (01:50:15)
Continuity mistake: After the Jackal shoots the cop in the subway, he grabs a girl to take hostage. Just before he grabs her, you see an old Asian man and two women walking up on his left. As the shot cuts to a front view of him as he grabs the girl, the man disappears and the two girls that were walking up are now different people with different clothes on as they run past his left side. But then after he walks a few feet, suddenly the old man and the same two girls appear again, but passing him several seconds later than they would have. (01:50:20)
Revealing mistake: In the scene towards the end, where Declan has chased the Jackal back onto the subway platform, and has just followed on himself, behind him you see a man (possibly a cop) running to get out of the way of the guns, but just before going out of shot, he stops running and just casually 'strolls' to the edge of the set (some kind of small booth or shop on the platform). (01:50:55)
Suggested correction: This doesn't really reveal any mistake. I see the guy he runs into it and then slows down as he looks back. There's not really much else place to go and he just saw that Declan wasn't shooting any of them, that the previous guy, The Jackal, was the one shooting the cop. There doesn't appear to be anything wrong with how this man acted as he went into that booth.
I watched the scene and he's running out of fear along with everyone else and the just stops running, as if he thinks he's off camera, and the starts to walk, but he never turns around. Everyone else is ducking if they're not running. It would not be a natural reaction in that situation, especially since people were still screaming.
Revealing mistake: After Declan and Preston say their goodbyes as Preston turns his back on him to let him walk away, the camera starts to pan up as Declan begins walking down the road while Preston goes to the little shop to buy some coffee. Only a few moments later in the same shot, it reveals there are train tracks cutting behind the shop, and there is now a train passing through that Declan walks in front of where we never see him again. The problem here is that this train is moving at a speed that it would have already been close to that railroad crossing while Declan and Preston were speaking. Trains are required by law to sound their horn when close to crossings, and it was close enough that we should have heard it several times already while the two were talking. Yet the train is now there only moments later and it never sounded its horn. Also, as the train is going by, the railroad arm is still up. (01:59:30)
Continuity mistake: When Bruce Willis is shot, blood keeps appearing and disappearing on his face.