Corrected entry: When Liam Neeson's character is in the crash into the river, he bangs his head on the glass, and the scar is seen to the viewer to be on the right hand side of his head, but during the car chase scene, the scar can be seen changing sides from left to right really frequently.
Correction: If you watch the scene where he is retrieving his briefcase there are actually scars on both sides of his forehead.
Corrected entry: When Doctor and Mrs Harris are being checked by customs, they get a stamp in their passport that reads 11 November 2011. But when Doctor Harris wakes up at the hospital after the crash, the doctor who treated him tells him it's Thursday November 24th and he's been in a coma for 4 days.
Correction: Look carefully. The date stamped in the passport says "20 Nov. 2011.
Corrected entry: When Dr. Harris is kidnapped and put in the black van by Cole, thug Gina steals a taxi to follow. When Gina drives off, the liftback door of the taxi is open awaiting luggage, but next shot it is closed.
Correction: It closed when she started the car. Right after the car starts it shows it automatically closing as the taxi driver tries run after it. Maybe it was automatic or maybe the momentum closed it, but in any case it's not a mistake as we see the trunk closing.
Corrected entry: When Martin Harris is attempting to prove who he is in the security office of the hotel, he asks the security to call a colleague. When he gives the number he says, "001.". International calls start with 011, not 001.
Correction: Actually, you dial 011 to dial out of the US to another country, but you dial 001 when dialing from another country to the US, so the movie is correct.