Revealing mistake: Just after the opening murder scene, there's a shot of a Chicago Police van responding with blue lights flashing. If you look closely at the roof lights between the beacon on the right side of the roof you can see a sign "FILM2" stuck to the bar. (00:01:55)
Continuity mistake: In the flashbacks seen at the start of the film, Charles Nichols introduces Kimble to Alec Lentz. When this flashback is revisited later in the film, when Kimble breaks into Frederick Sykes' house, the words and actions of Nichols and Lentz are slightly different to what was seen earlier in the film. (00:04:15 - 01:24:55)
Other mistake: After we see a shot of the prison bus driving along a road, the white, balding jail guard says, "20 miles to Benard. We should be there in 40 minutes." Not long after, one of the inmates begins to foam at the mouth. The black prisoner cries, "Hey, somebody, get in here quick!" The black jail guard stands up to unlock the cage, and the white, balding guy says to him, "We're almost to the prison." This is impossible considering he just mentioned the prison was 20 miles away. (00:14:52)
Suggested correction: Almost is a relative word and compared to Chicago/Cook County, they could almost be at the prison (when flying from NYC to LAX, when you are over Utah, you are almost there even though you still have like an hour to go). But more likely (and how I have always taken it to mean), the guard didn't give two cents if these prisoners died in transport and the other guard should just sit tight because they are almost where they have to go and the prison doctors can look at him then.
Continuity mistake: During the bus accident, Richard Kimble is handcuffed. When the bus is falling, you can see that he has no handcuffs on, but then when he asks the guard to uncuff him again, he has them back on. (00:16:20)
Other mistake: When Harrison Ford is being chased in an ambulance by the police, there is a shot of police cars heading towards the waterfalls in the background. If you look closely, the water is not moving. (00:33:15)
Suggested correction: The water IS moving, you just need to look closely.
Continuity mistake: When Kimble goes back to the hospital as a janitor to check the hospital computer, the lady working in the lab is wearing two different dresses. (01:05:15)
Revealing mistake: During the St. Patrick's Day parade, Kimble removes his coat. In the next scene, he hasn't got the coat anymore, and he HASN'T dropped it. Don't be fooled. If you look to his right in the scene just after he takes it off, you can see a man carrying a coat that is the exact same colour and design. I assume this guy is supposed to be hiding the coat from view, but you can plainly see it. The guy is wearing a green hat. Kimble had no time to give it to him before the scenes changed. (01:23:25)
Visible crew/equipment: After Sykes shoots the Transit Cop on the "L" Richard pulls the emergency brake, and in the following shot facing Richard as the train screeches in flashes of darkness, the reflection of a crew member quickly becomes visible on the glass window beside Richard. (01:47:45)
Continuity mistake: When Kimble is on the moving train, Sykes mysteriously appears from a door when he wasn't there before. (02:00:00)
Revealing mistake: When the movie begins and Kimble is questioned by the cops, the blood on his T-shirt remains red, instead of dark red or brown due to oxidation.
Continuity mistake: Kimble dyes his hair very dark to escape detection and dyed hair fades over time. For the rest of the movie his hair noticeably goes from darker shades to lighter shades and back again showing that the scenes were shot non-sequentially on different days with a fair amount of time in between.
Character mistake: Kimble has just finished talking on the phone with his lawyer when the cops hear the noise in the background. They figure out the sound is that of an El-Train. They then start to list the different places that have an El. One of the cities they name is Milwaukee - there has never been an El-Train there.
Other mistake: When Kimble takes the elevator to the conference to confront Dr. Nichols, he presses a button, but the one beside it is the one that actually lights up. In this particular elevator, the button he pressed is the one that should have lit up.
Continuity mistake: After Richard Kimble first escapes they say he is near Route 15 and Interstate 57 heading towards Berkeley Dam. All these places exist, but Barkley Dam (Kentucky) is around a hundred miles away from these two roads (Illinois), and besides, Berkeley Dam looks nothing like what they show in the movie.
Continuity mistake: When the bus full of prisoners rolls down the embankment, it finishes up lying parallel to the train track. Yet in the next scene, the bus is clearly lying across the train track.
Other mistake: When Dr. Nichols hits Dr. Kimble with a chair, look carefully. As Dr. Nichols swings the chair, it starts falling apart before it even makes contact with Harrison.
Visible crew/equipment: During the chase scene in the access tunnels under the dam, there are several shots where the camera is in front of Harrison Ford moving backwards, showing him as he runs from Tommy Lee Jones. You can see the tracks that the camera dolly is riding on.
Audio problem: If you listen carefully to the conversation Kimble has with his lawyer, he says "St. Louis" differently in the live version and the police recording, indicating the crew may have used two different recordings.
Other mistake: After Kimble has been rescued from the train wreck and unchained, he escapes, running alongside a body of water. As Gerard announces to the other officers that there's a fugitive on the loose and gives instructions, Kimble is seen running again, in a replay of the earlier shot. Not only are all the same landmarks in place, but at the end of both sequences, he moves his arm to shake off a branch that's snagged him.
Continuity mistake: When Kimble is calling his lawyer close to the EL-train, he says something and then you hear the "clang" from the train's bell. You only hear it once. However, when the police records the call and plays it, the clang sounds almost constantly during the conversation.