Continuity mistake: When the robber asks Kyle the code for the alarm system on the ground just past the entrance, Nicole Kidman is holding Nicolas Cage's hand in a different spot in the various shots. (00:14:50)
Continuity mistake: The bad guys put Kyle and Sarah Miller on the ground in the hallway; hilariously enough, Nicolas Cage reaching for Nicole Kidman's hand grabs by mistake together with her hand also part of her hair pulling it. It's gone in the next shot. (00:13:20)
Continuity mistake: After the intermission showing Avery at the party, the movie shows the villains throwing to the ground Nicole Kidman. Look at the guy with Nicolas Cage; he has the gun pointed at his head already when he says "On your f*cking knees", but pointed away from him in the next shot saying "Face down." (00:13:15)
Continuity mistake: Nicole Kidman is tackled by two criminals at the garage door; they are inches away from her, but somehow she manages to hop on the car and start it before the bad guys show up. (00:12:25)
Continuity mistake: When Sarah offers her husband a glass of wine, she is holding her own glass with her fingers pointing up or level depending on the shot. (00:09:20)
Continuity mistake: Avery asks her mum permission to go to a party. She replies in the end "Well, I said no" just as the dad arrives. The hair on her shoulder/upper arm changes position between shots. (00:02:40)
Other mistake: The gasoline at the climax of the movie catches fire, which is absolutely fine...but the fire spreads with the same intensity and speed across the money pile which was not touched by the gas. And it does it with a pattern, too. But the gas never got there. (01:21:45)
Other mistake: Kyle and his daughter manage to free themselves burning (at least in part) their scotch tape bindings. The robbers don't realise that. Try to burn similar tape with a lighter; the smell (that they can't mask) is gonna alert anyone, especially when they get this close. Later Kyle is working the weakened tape and in close-up we see just his forearms, but the kind of movement he does is impossible to make without moving the rest of the arm, and the bad guy (with his accomplices) is literally looking at him at that moment. (00:50:00 - 00:54:00)
Other mistake: Sarah steals the tranquillizer syringe (which is no small syringe, either) and supposedly slips it in her sleeve. Problem is, Nicole Kidman is wearing a pretty tight dress with sleeves that go up to the elbows. There is no way for her to hide the syringe that way (and in fact the actions of hiding the object and then later in the movie pulling it out happen in shadowy close-ups). (00:36:20)
Other mistake: Succinylcholine paralyses you for about 10 minutes; in the movie it lasts way longer, and the bad guys were planning to use it instead of ropes and cuffs. It would have bought them a really short time, surely insufficient to make their planned escape to Mexico, while tying them up with just about anything (zip ties, scotch tape) would have given them potentially hours.
Factual error: When Elias shows Kyle the syringe full of succinylcholine, the liquid is brown. Succinylcholine is colorless. He also describes it as something that will basically get them high, which is not what the substance does (although that part may be deliberate deception - even if he does not hide at all the fact that an OD would kill them, so the purpose of such deception is unclear). (00:26:10)
Character mistake: When the robber taunts Kyle, and he tells him that he does not hear the cops and the alarm...he's kinda not getting the point of the 'fake' code that Kyle was trying to use. The alarm was not gonna make any sound, it was going to be a silent one. And he knows that. (00:15:55)
Character mistake: The alarm system has two codes; one (7466) that works properly and the other one (7465) that appears legit but would call the cops as well. Sarah is supposed to give the legit code, but before being cut off she says "774..." That would have not been a valid code. (00:15:20)
