Continuity: When the logs fall off from the truck trailer bed you can see there are no other cars on the highway, apart from the victims', and when it changes to the next shot during the scene there are the same amount of cars on the road as there were before the logs fell off.

Continuity: At the end of the movie when Eugene and Clear get toasted by the explosion and officer Burke and Kimberly get up her hands are clean and fine but in the next scene she has "Bloody Hands"

Factual error: In the scene where Timmy (the kid who gets crushed by the glass slab) is at the dentist, the tube on the water tank comes off and water spurts out. That tube is the water intake, so if it were to break of it would be sucking in air, it would not be spurting water out.

Revealing: When Evan slips and falls on his back, you can see the 'ground' vibrates right when Evan's body hits it. With that amount of impact, a concrete ground wouldn't visibly vibrate like that. Of course the filmmaker wouldn't let the actor fall on something concrete for safety.

Revealing: In the scene where Kim's in the car explaining her premonition, she turns on the radio and the time is 8:24. When officer Burke approaches the car, it's only a few minutes later. But later when Officer Burke, Kim, and Clear are checking the tape to identify Isabella's license plate, the time on the tape says 9:12.

Continuity: In the pile-up scene, when Kimberly's car flips over, you can see the rear-left wheel breaking apart, then in a quick shot from a different point of view, it has its four wheels, and the very next shot, the wheel is breaking apart again.

Visible crew/equipment: In the scene where the remaining characters are driving away following the van collision incident, Kimberly is seen to be having a second premonition involving the lake. As she is choking she lets go of the steering wheel, causing the car to swerve violently. In the shot where we see the car front-on, it looks like the cop character was actually a stunt driver in complete control of the van.

Visible crew/equipment: After Kimberley's premonition she sees the truck zooming past her car and starts yelling. When you see an unusual expression on Sheena's face when the camera view is in the car look closely in the right side mirror you can see a boom mic in the reflection.

Revealing: When Kimberly's car gets flipped around a bunch of times, the dummie's limbs flopping around are quite obvious.

Continuity: The position of Tim's hands change when he is about to leave the police station.

Visible crew/equipment: There is a fluffy mic visible in the car that Kat is driving when it crashes into the haystacks.

Factual error: In the scene with the defibrillator it shows on the trace that her heart rhythm is asystole. Defibrillators only work with shockable rhythms i.e. VF (ventricular fibrilation) or pulseless VT (ventricular tachycardia). Using one on an asystolic patient would have no effect at all.

Visible crew/equipment: At the gas station when the cop is talking, the camera pans by him quickly but for a second you can see the cameraman reflected in a metal part of the gas pump.

Visible crew/equipment: In the highway crash at the beginning you can see one stunt driver wearing a helmet. You can also see, that several cars, that flip over, have a kind of safety cage to protect the driver.

Deliberate "mistake": When Kimberly is being revived, it's obvious that they are using a defibulator. But when Kimberly finally comes to and is covered by a sheet, you can see she has a bra on. This is impossible to have because you need direct contact with the skin in order for it to work. And the machine would start the heart working if it was lower on her chest.

Visible crew/equipment: In the pile-up scene when Eugene falls off his bike and crashes into the log you can see what seems to be a crash pad. After he has fallen and hits the log, the bike crashes straight into him. If you look closely just above the log you can see the crash pad.

Continuity: In the scene where Kat is trapped in her car by the log, she pulls out a cigarette and starts smoking. When the worker tries to pry off the door, she says "Could you put it on quiet mode?" and turns away, her cigarette looks completely new. But then five seconds later after her airbag goes off and kills her, her hand drops to the side of the car, but her cigarette is considerably shorter (about half it's length) than it was five second ago. Surely she wasn't able to smoke it all in the amount of time that progressed?

Continuity: When Kimberly drives up and block the way, to the high-way, she does a 90 degree turn. Yet when their car gets hit by the truck it's turned back again. Now when did that happen?

Visible crew/equipment: At the beginning of the movie, (outside Kimberly's house when she says, "We're gonna go meet the guys") one of the extras in the background (he is clipping the hedges) keeps looking at the camera. [This was pointed out on the DVD].

Continuity: After Evan turns on the stove, the camera switches shots and the flame is gone, then the shot switches, and it is back again.