Other mistake: Bryan is recording as his daughter is being taken. When Marko comes on the phone, Bryan unplugs the phone from the recorder to speak with Marko. So, he actually didn't record him saying "Good Luck" yet. On the plane, Marko says it on the recorder.
Continuity mistake: When Bryan is handcuffed to the pipe being choked from behind, the pipe breaks, and he headbutts the guy behind him. When he goes in for the headbutt, his left hand comes down as if he is no longer handcuffed but then in the next shot, he's suddenly handcuffed again. (01:14:42)
Continuity mistake: When Bryan goes into the store to buy the karaoke machine, there is a clock visible on the wall behind the merchant. During this scene, the minute hand jumps ahead by 5 minutes between the first shot of the merchant and the second shot 6 seconds later. (00:01:55)
Continuity mistake: Just after Kim was taken from under the bed, Brian talks to the Albanian on Kim's cell phone. Just after the bad guy tells Brian, "Good luck," the loud clicking sound of a heavy, old-style phone receiver being hung up is then heard, disconnecting them. However, a cell phone does not make that sound when a call is ended.
Other mistake: When the blonde arrives from Stockholm, the announcer refers to the arrival (in French) at gate "seize" which is sixteen in English. The subtitles say Gate 18, which is Dix-Huit in French. (00:36:45)
Continuity mistake: When Brian meets Kim at the café, her sundae keeps changing from being untouched to touched.
Continuity mistake: When Brian takes the picture of Kim at her birthday party the background doesn't match the background of the picture after he gets it developed.
Plot hole: When Brian is on the boat, we see 3 girls from the auction being ushered into the sheikh's stateroom. He eliminates all the bodyguards, the last of who is the leader with the knife, and who is the only person who knows which of the girls is Kimmi. When Brian enters the stateroom, the sheikh is holding her at gunpoint. How did he know she was Brian's daughter?
Suggested correction: This is a question, not a plot hole. It is possible the man who bought Kim at the auction had to explain to his boss, the sheikh, why he bought her. He probably told him about the troubles he has had and the possibility that this man is still searching for his daughter, the girl in front of him. Hearing the fighting going on the sheikh correctly assumes this is the same man and tries to use her as a shield against him when he enters and threatens her with a knife.
Don't think so - lot of probable's. The Sheik's right-hand man would have assumed Brian was dead as St Clair's men had captured him, but he spotted him on the boat and only told his boss he would 'kill the dog', not which girl he had come for. Agree correction - she was held by knife-point.
He bought a girl he was not instructed to buy, for a lot of money. Of course he had to explain that to the Sheikh.
Not a plot hole, not even a contrivance. The sheik just grabbed whichever girl that was with him. It didn't matter who she was, it was just a case of "let me go or 'll kill this random, innocent girl." The fact that it was Kim was a simple coincidence (1 in 3 chance).
Continuity mistake: When Brian rents the car, he drives out of the agency driving an Audi. When he is at the construction site, the car has changed to a Mercedes-Benz.
Suggested correction: We don't see him arrive at the construction site, only standing in line to enter the building. He uses a Jeep SUV to get away, and the bad guys are driving trucks and a Mercedes SUV. He probably stole the Jeep for the getaway after confirming before he got in line that the workers left the keys in the vehicle.
Other mistake: In the scene at the construction site, the guy in front of Liam Neeson gets a card with the number 4. When we see him inside, he walks past the number 4 room.
Suggested correction: The guy who gets a card number 4 is not in front of Liam, he was in front of the guy who was in front of Liam, so we never saw which room he actually went into.
Other mistake: When Amanda is taking a photo, the camera phone was held in the landscape position, but when Peter is taking the photo for them, he held it in the portrait position. Later, when Bryan was reviewing the photos, all the photos were in the landscape position, including the one supposedly taken by Peter. Also, when Bryan was reviewing the photos, they were on a SIM card from Kim's broken phone, not Amanda's phone, which is what Peter used to take the picture.