Continuity: At the memorial service the principal says that it's been 39 days since 39 loved ones had died. But there were 40 students on the plane and 4 chaperones, making the total 44. Now 7 people got off the plane which means 37 people related to that memorial service actually died, not 39.

Continuity: The scene where Clear is in the garage, she puts the car in drive, but somehow reverses the car through the garage door.

Factual error: The teens are traveling presumably along the Meadowbrook or Wantaugh parkways, when the enter Jones Beach. They see a sign just before the beach entrance that says "New York: 93 miles", when Jones Beach is less than 15 miles from NYC limits and approximately 25-30 miles from Manhattan.

Continuity: At the end when Clear is in the car, trying to get away, she knocks over a can of turpentine. When you look at the can again it has changed the way in which it fell.

Other: Right before Terri is hit by the bus, there are puddles and wet patches all over the road and path. But when the bus actually makes contact with Terri, they all instantly disappear.

Continuity: In the "original" version of the plane crash you can see that Alex fastens his seatbelt in a direct closeup shot. When he awakens from his premonition the seatbelt should be fastened because he did so before Christa and Blake asked him to change places. He doesn't remove it though in the second version of the plane crash before he rushes to Todd.

Continuity: When the woman teacher is lying with the knife in her chest, Alex comes around the corner and she looks at him. There is barely any blood on her neck at that point despite it spurting in earlier shots.

Continuity: People sitting beside Alex disappear at the funeral.

Continuity: After Mrs. Lewton closes the kettle lid, it is open in the next shot.

Revealing: In the scene where Carter drives madly down the road to get to Alex, and Billy is riding his bike along the street, just before Billy gets knocked off you can clearly see it is a stunt double.

Revealing: When the car explodes you can see that it has been cut in two before.

Deliberate "mistake": At the start when you see Alex, Tod and co. walking down the walkway to the plane you can see that their heads are almost touching the ceiling. You can tell it was shortened to make the path longer for the appropriate sequence and then after when they reach the turning the ceiling is much higher.

Continuity: In the scene where Alex is watching the TV on how the plane exploded, look at the illustration shown. Then compare it with the illustration that appears on Alex's computer screen. The positions of the explosions shown are different.

Plot hole: In the last scene where Carter, Clear and Alex are in Paris, Clear sees the reflection of the bus. Shortly after that the bus hits the pole that flies up and unleashes the billboard that kills Carter. The pole cannot fly so high and cut the billboard loose.

Revealing: When Billy looks out of the airport window, you can see that there was a model plane used when you see it take off.

Audio problem: The wheels of the police car screech when there's gravel on the street.

Continuity: The pump removed from Tod's neck, in the morgue, reappears.

Continuity: After Carter wets himself, the urine stain changes shape.

Continuity: The plane that takes off and explodes isn't a Boeing 747. It should be because that's what they boarded.

Continuity: The match Mrs. Lewton lights is obviously way too long for the matchbox.