Continuity mistake: When Bryan meets his daughter in the restaurant and gets her a milkshake with three cherries, as the scene cuts from Bryan to his daughter and back, the whipped cream goes from being on top of the milkshake to melted and then back again to being on top.
Continuity mistake: When Bryan shoots and kills the auction leader in the elevator, his right hand is on the ground. In the next scene where the elevator opens, his right hand is on his stomach even though he's dead.
Factual error: The weapon Bryan uses to kill the Albanian kidnappers is a Beretta 92FS (M9); it has a 15 round magazine, yet he fires 17 times without reloading.
Continuity mistake: When the pop star and Liam are getting into the car to leave the concert, her hair is dry and perfect, but in the next shot when they are in the car, her hair is drenched.
Continuity mistake: When Kim is in the café talking about the trip, the hair on the right side of her head covers and then uncovers her ears multiple times between shots.
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 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.
Continuity mistake: When Brian meets Kim at the café, her sundae keeps changing from being untouched to touched.
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).
Suggested correction: There's nothing to suggest that the sheikh did know. He just grabbed one of the girls to use as a "shield". It didn't matter to him if it was Brian's daughter. We only place significance on the act because we know it's her, and humans like to find meaning in things.
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.
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.