Continuity: When Ms. Lewton dies, she is grabbing her bleeding neck with her left hand. While walking into the kitchen, she leans onto the kitchen table with her right hand. Later in the scene, when Alex comes and tries to help her, we see the bloody left hand impression on the table, even though we should see the right one.

Continuity: When you see Alex watching the news report about the crash of 180, after coming back from the airport, you see his mum and dad asleep on the couch with a pillow at the end of his mothers foot and a few shots later after hearing the loud thunder, the pillow is lying on her ankles.

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

Continuity: When they are going through the gate to get on the plane, the teacher counts the pupils (in French). He counts upwards in ones, even when two pass him at the same time, arm in arm.

Continuity: When Alex is talking to Clare in her garage, one strand of her hair keeps changing, first curled under, and then straight, back and forth...

Factual error: The plane explodes creating a rather small fireball. this shows us that it happened far away. Nevertheless the airport's windows are blown into pieces. Did you ever notice how heavy these windows usually are? They would never have been smashed by an explosion that far away. Could be argued that the plane was close enough to smash the windows, in which case the plane and explosion are too small. A mistake one way or another.

Deliberate "mistake": When he is in the cabin opening the can the pull tab is already lifted up making it easier to open because he is wearing gloves. It was already up when he took the wrapper off.

Continuity: Near the beginning, when they are at the Memorial for the school, look closely to the right of Devon Sawa right after he and the other gal look at one another - an extra with red hair walks in front of him, in the very next shot Devon gets up, and the same extra is now behind him.

Continuity: When they are about to enter the plane, we see Alex, Todd and his brother walking the hallway to the plane, and right behind them, you can see Carter and his girl, but when they turn 90 degrees, we see Alex , Todd and his brother, but Carter and his girl are gone.

Continuity: After Alex reads his porno and throws the magazine at the owl, that one piece of paper with "Todd" pops out of the fan after the magazine got stuck in it. Now, this is a very small mistake, but if you look at the shape of the piece of paper, the one short stump side changes between takes. Like I said, it's very small differences, but there are differences.

Continuity: In the scene where Billy gets his head sliced off by a piece of metal that fell off the train, as his head rolls away his hair is a much lighter shade of brown than it was during the rest of the film.

Audio problem: After Alex had his premonition he tells Mrs. Lewton what happened and when he says, "The left side blows up." his lip movements are delayed.