Other mistake: In the scene where Mary Lynn Rajskub is driving Harrison Ford around, she is told at the beginning of the scene to "pop the clutch", signifying that she is driving a manual transmission vehicle. However, during the drive, she never removes her hands from the steering wheel to shift gears.
Continuity mistake: The 70s vintage green Plymouth belonging to the secretary, has what appears to be an inspection sticker on the driver's side of the windshield. However, when the vehicle catches fire near the end of the movie the sticker is missing.
Deliberate mistake: When Harrison Ford and Mary Lynn Rajskub are crossing the tracks, its Rajskub who's driving the car, not Ford. This is because the filmmakers originally had Rajskub driving the entire way. They later refilmed the drive with Ford driving, but kept the shot of them crossing the tracks the same. Ford and director Richard Loncraine confirm this on the special features of the DVD.BillyBlake
Factual error: This film depicts wire transfers as happening instantly. Electronic transfers of funds actually take 2 business days - 3 if the transfer is submitted after the Federal Reserve has closed for the day.
Continuity mistake: When Jack first arrives in his office at the bank after his family has been kidnapped, as he is sitting down, the phone on the table in front of him is sitting at an 8 o'clock position. Next shot shows the phone sitting at a 6 - 7 o'clock position. (00:26:50)
Continuity mistake: When Jack pulls over the railroad tracks in the green Dodge, the headlights are missing. Just a few minutes later Jack is driving over the wooden bridge with headlights right where they should be.