Richard Kimble has a stand-off at the end of the tunnel with U.S. Marshal Samuel Gerard. He then jumps from the tunnel on the dam's face into the water below. In the exterior shots of the dam afterwards, it is clear that there are no tunnels coming through the face of the dam (the water flows over the top.)
When the prison bus is rolling down the hill it comes to rest up against a tree and is parallel with the slope. As the train is approaching, a shot of the bus up ahead shows the bus sitting upright across the tracks which would make it perpendicular to the slope it just rolled down off from, not parallel.
When Kimble is having the passport photos taken, he is wearing the green shirt which he doesn't buy until later.
When Richard prints his list of one-armed suspects, he crumples the paper before putting it in his pocket. In subsequent scenes, the paper is folded but uncrumpled.
As Kimble is climbing out of the bus window his leg shackles appear to have disappeared yet in the very next scene where he is seen running from the derailed and fast approaching locomotive, he clearly has them back on.
When Kimble enters the elevator in the hotel on the way up to see Charles, he pushes the top middle button, but the top right button lights up instead.
Gerard states that he's taking over the local sheriff's investigation and he's from the United States Marshals Office, 5th District Northern Illinois. It's just the Northern District of Illinois. The US Marshalls do not assign numbers to their districts. Some districts have numbered divisions within them, but not northern Illinois.
the investigators mention that Dr.Kimble's fingerprints were on the pistol that was used during the assault on his wife, but they did not examine his hands for gunpowder residues.
The only way to explain the lack of gunpowder residues on his hands would be that the invader had been wearing gloves, but then again the doctor's fingerprints would hold no evidence at all.
No hospital in the modern world would allow orderlies or anyone to wear roller skates due to the obvious safety hazards.
The Marshals tap Kimble's attorney's phone in order to track Kimble's whereabouts. However, because of attorney/client privilege, everything between attorneys and clients is completely confidential. The Marshals would not have been able to legally tap the attorney's phone without consent, something that no attorney would ever consent to.
When Kimble is making the call, the PA announcement for an El train is overheard. While PA announcements are now made only inside the train, in the early 1990s they were clearly audible in the station (maybe more so than in the train), and even in the nearby streets.
When the technician is dusting for fingerprints in the apartment, he mentions that Kimble's prints are all over the apartment and concentrated on the desk. How can he visually determine which prints are Kimble's simply by dusting for them? A definitive match would have to be done in a lab or by computer today using known prints for comparison.
The information police are given when chasing a specific fugitive would include a copy of the fugitive's mug shot, rap sheet and fingerprints. Detectives doing the dusting would be trained to identify matches. It wouldn't be immediate, but it would be quick. The prints would be sent to the lab for verification and evidence.
Kimble dyes his hair black in one scene and then in another scene his hair is the same old color from the beginning of the movie. However, it's entirely possible (even likely) that Richard purchased the kind of temporary dye that washes out within a few weeks. Since the scenes take place over the course of several months, it's not at all unlikely that the scene in which Richard's hair is again its natural color occurs a few weeks after the last scene in which he has black hair.
When Kimble looks at the boy's chest X-ray in the hallway, he holds it backwards. The shadow of the heart should bulge outward to the left of the patient, the right on the X-ray. However, this doesn't really matter, as it still allows him to tell what's wrong with the boy; furthermore, speed and minimizing chances of being observed are more important than turning it around.
When Kimble is fleeing the U.S. Marshals in the jail, he is shot at (but not hit as he was shielded by bulletproof glass). Kimble did not pose an immediate threat to them at the time, which would normally make shooting at him illegal. However, law enforcement officers do have the authority to use deadly force on a fleeing suspect if they reasonably believe the suspect's escape would create a grave danger to the community. Considering that the Marshals, at the time, believed Kimble to have viciously murdered his wife, it would be reasonable for them to think he could do such a thing again should he escape them.
While Samuel Gerard is searching for Richard Kimble among the people at the St. Patrick's Day parade, you can clearly hear a person shout out, "Hey Tommy! Woo!", likely directed at actor Tommy Lee Jones.
Repeated footage: When Richard Kimble is running from the train wreck in the woods, before he reaches the hospital.
During the ambulance chase, when they drive past the dam, the background shot is a still image.
When Gerard and Cosmo are riding in the car, and eventually wind up at the Hilton, the car's rear view mirror has been removed from the windshield.
In the opening scene, as the ambulance drives up, a placard reading "FILM-2" is clearly visible on the ambulance light bar.
After Kimble knocks Nichols unconscious and then surrenders to Gerard, Gerard uses his foot to slide the pistol away from Nichols's hand. However, as the scene is ending, Gerard clearly begins to walk away, without picking up the pistol. Thus, it would still be within Nichols's reach if he regained consciousness.
After the bus has rolled over and over many times the passengers are still in their seats.
Kimble is able to get into Sykes' apartment by kicking through a window with boards across it. Since Sykes was head of security at Devlin McGregor he certainly would have much better security for his own apartment.
As Kimble is walking with a group of others in the parade he removes his coat supposedly to change his appearance from Gerard who is coming from behind looking for him. When he exits the group and goes off to the side he is no longer carrying it which means he would have had to drop it on the ground as there was no place to hide it in the middle of the street where he was marching along with the others. However when Gerard gets up to the back of that group there is no coat on the ground.
At 36:57, during the ambulance chase, the dam is shown in the background and it's a still picture.
When the helicopter with Gerard in it lands outside the tunnel that Kimble is driving through, he says "Alright, we got him!", but his lips don't move.
In the tunnel when Gerard is yelling at Biggs asking him what he's got and telling Biggs that he's got nothing, Gerard's lips aren't moving.
When Renfro says, "Chicago PD will eat him alive," his head turns several times, but his lips don't move.
When Gerard removes Kimble's cuffs, the sound is distinctly that of handcuffs being closed.
As the train wreckage comes to rest Kimble is hiding under a
small trestle bridge. A shot up at the wreckage shows a crew member's face above the trestle. This error was corrected for the 2001 DVD release of the film, after Andrew Davis noticed it. The crew member reappears on the Blu-Ray disc version of the film.
During the chase in the dam tunnel the dolly track is visible in the water.
Moving shadows, possible that of a crew members hand, can be seen on the elevator interior wall behind Dr. Kimble as he exits the elevator on the 5th floor laundry room (after the fall from the skylight).
Camera truck visible at the bottom of the screen as Kimble enters the tunnel.
Studio lights visible as the train approaches the bus.
During the ambulance chase, two police cars turn by a sign pointing to Murphy, North Carolina.
Although the movie is set in Chicago, many of the scenes show large hills and mountains. Illinois is flat through most of the state, but in the begining scenes in Southern Illinois, the area is rugged and hilly. (The scenes were filmed in North Carolina).
There are no dams like the one Kimble jumps off of in Illinois. It's way too high and the gorge way too deep. Illinois is basically flat with little hills in S. Illinois.
The Marshals tracked Dr. Kimble from the phone call at the one armed man's house and said that his address was 10256 S. Saint Lawrence. The Marshals went in and come out of 11217 S. Saint Lawrence. Also, the house that the one armed man went into was on the other side of the street.
On the sheet of paper with the list of the five possible one-armed men, the last name and address has an address in Napierville, which is actually spelled "Naperville".
When the guard from the bus is interviewed he claims to have somehow thrown his partner out of the bus before the train hit. But the other guard has not yet been discovered alive.
When Kimble is at the hospital helping the little boy, Samuel Gerard and his men are in his rented room, having discovered where he's living now. However, the following scene shows Kimble at the Richard Daley Plaza the next day. It's never explained why Kimble didn't return to his room from the hospital that night, or where he spent the night, since he'd obviously have been caught if he did return.
When Kimble and Nichols fight just after the speech is interrupted, Kimble tosses him out a door onto an exterior balcony. The door uses ordinary fire panic hardware, push to open. The door should swing inward. That kind of door is always used to move toward a fire EXIT. A balcony is not an exit, unless the Fire Marshall expects you to jump off.
When the leg irons are found, why does Gerard assume they belonged to Kimble? They could just as easily been Copeland's, since his body hadn't been found either.
During the emergency room scene just before Dr Kimble diagnoses the young boy's condition, the boom mic can be seen in the reflection on the medicine cabinet when one of the male nurses says "is there a doctor in here?"
Kimble's attorney had many opportunities to suppress or refute evidence that may have helped Kimble's case. For example, Kimble's fingerprints being found on his own lamp and his own gun should not have raised any suspicion, yet it's implied that the defense never used this evidence. Also, Kimble's attorney should have looked into alternate explanations as to why there was no forced entry into the Kimbles' home the night of the murder; the question of to whom Richard lent his keys would have brought up.
The detectives watching the interrogation room say "The good doctor's prints are all over the lamp, the gun and the bullets." No matter how biased, incompetent (or plain stupid) a police detective is, the fact that a person's fingerprints are present in his own home, on his own stuff, should not even be mentioned as evidence (the gun wasn't even used in the crime at all). It would only constitute as evidence if there were no other prints in the room.
It is mentioned that several other cities have an "El" (Elevated) train system. Milwaukee is incorrectly included on the list.
Guards transferring prisoners on the bus should know they're not allowed to discuss the distance and time to the destination in front of the prisoners because this gives the prisoners an idea of their present location.
When Sam and the other U.S. Marshals enter and look around the room Richard was renting, they touch and go through his belongings without wearing gloves, which is against police procedure.