Factual error: When Kat is driving the survivors and they crash into the field, they slow to a stop while spinning - there is no way the car would travel backwards with the speed that it appears to in the next shot.
Revealing mistake: When the officer is looking at the pictures of the Flight 180 survivors and their deaths afterward, notice that Todd is shown still struggling at the ropes and looking into the camera. Apparently the media thought it would be better to take a picture of Todd as he was committing "suicide". A similar incident occurs with the bus accident picture. The girl is obviously splattered in the first movie, but appears to have mostly leg damage in the pics.
Visible crew/equipment: When 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.
Factual error: When the surviving state trooper is searching the police database for Alex Browning the search results pop up in a new window although the box that says "Open in new window" is unchecked.
Continuity mistake: 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?
Audio problem: When the lottery winner is in his apartment he actually puts his hi-fi into "standby" mode when the music starts. You can tell this because the red standby light comes on at the same time as the blue display goes off.
Revealing mistake: After the logs fall off of the trailer at the start you can see the truck jackknife and behind you just see a car flip on its side and exploding without any obstacles near it.
Visible crew/equipment: In the car pileup, as soon as Rory's car flips over you can see the device which flips over his car.
Revealing mistake: During the beginning crash sequence, you can see the tubes that fire a log in order to flip the cars. When the Mustang flips, you can see the flame from the charge in the tube. The red SUV has a visible flip tube as well.
Continuity mistake: During the premonition where the Mustang flips you see 2 major components of the car fly off. First the hatchback then the gas tank. If there is no gas tank, there is no fuel so why does the Mustang explode when the truck hits it?
Continuity mistake: When Evan is alive, his nipple ring is on his left nipple, but when he is dead tony Todd removes it from the right nipple.
Suggested correction: It's always on the left nipple.
Factual error: The truck flatbed that is carrying the logs has a fuel tank attached to its underside. Flatbed trailers do not have these. (It's a fuel tank for enclosed refrigerated trailers.)
Continuity mistake: When Kimberly gets her first premonition her window switches from being up to down between shots.
Continuity mistake: When Kimberly is being revived, we are seeing blurry images of the doctor and eventually the heart monitor showing she's flat-lining. What we are seeing is what she is seeing, and since she's flat-lining she wouldn't be able to see anything. She also sees when her heart starts beating again, but when they go back to her, her eyes are closed.
Continuity mistake: Frankie takes the joint from Dano twice.
Continuity mistake: At the start when the logs fall off of the truck you see only one chain snap off, before this happens you see that the truck has three chains attached to the trailer.
Continuity mistake: When Kat is calling Brian for help when she is trapped in the car, the log is straight, but when he gets to her it is bent.
Continuity mistake: 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 shot she has "Bloody Hands"
Suggested correction: Her hands are bloody when she gets up.
Visible crew/equipment: The camera is visible going through the aquarium in the dentist's office.
Revealing mistake: When Rory gets cut in half by the fence in the wide shot(if you look closely)you can see the outline of the green suit he is wearing.
