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.
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.
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.
Other mistake: After the train crash the news crews and sheriff are interviewing the surviving corrections officer. He boasts how heroic he was to rescue his partner from the wreckage, claiming that he was his partner and he would do the same for him. The only problem is that they are surprised when they find that same surviving corrections officer several scenes later and rush him to the hospital. Why would they be surprised to find an officer they already knew about?
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)
Other mistake: During the St. Patrick's Day parade, the camera shows a clock that displays the temperature, which is supposedly 23°. None of the spectators or performers we see is dressed for that temperature. They would be way more bundled up than they are. Everybody is dressed for weather in the 40s or so.