Continuity mistake: After Lisa pretends to be reading a magazine to avoid the security guards who're looking for her near her gate, she spots Jackson and you can see two men sitting at a table eating lunch in the foreground of the shot. When Jackson sees her and starts running after her, both the table and the men are gone (Jackson runs through the place they used to be). (00:56:45)
Revealing mistake: When Jack is falling down the stairs, you can see a pad on his back. (01:05:00)
Continuity mistake: When Lisa is changing her top in the bathroom you see the cut on her chest and it is red almost as if it was only recently done or had been bleeding. Later in the film when Jackson is in the bathroom and he sees the scar it is healed up and there is now a fully healed scar. There are two problems, firstly the cut could not have healed in the few hours between when we see it. The second is that the cut we see at the beginning was said to have been caused two years prior. Therefore how could the cut be that fresh? (00:10:10 - 00:41:55)
Revealing mistake: When Lisa kicks Jack causing her shoe to stick into him and for him to go falling down the stairs, you can see the face of Jack's stunt double. (01:05:00)
Continuity mistake: After Lisa manages to steal a car away from the couple at the airport, we see her try to make calls from Ripner's cell phone. After the cell phone blinks "Low Battery" for the first time, we can see that she is wearing a seat belt. Lisa then swerves to miss an oncoming car, and we see her hastily fasten her seat belt, as if it was never fastened before. (00:58:55)
Continuity mistake: When Lisa stabs the pen into Jack's neck, she stabs him in the side of his neck, however, when they show the pen and from then on, it's in the middle of his neck. (00:53:55)
Other mistake: When the Deputy Secretary of Homeland security is on TV at the airport while everyone is waiting out the flight delay, his title is spelled wrong, as "Deputy Secretary of Homeland Securty", on the TV screen. It is corrected on the change in the shot. (00:14:38)
Answer: Yes he called because she hit the guy and ran into his house. When 911 calls back they say that they had a call about somone being hit in front of the house and asks if they still need the police.