Continuity mistake: Before the karate girls are killed the Captain runs to the back of the plane. Couple minutes later, the same shot is used for no reason at all.
Continuity mistake: All the passengers run from business to coach class. Then there's a shot of a passenger in business saying she won't go to coach and the passengers pass by her again.
Continuity mistake: When the scorpion kills Jan her left arm swaps from being up or down depending on the angle.
Continuity mistake: When Jan is killed, her friend trips over with the scorpion's leg turning around about to fall, but the shot changes and she is perfectly still, and couple seconds later she turns around.
Continuity mistake: Fred throws Milhouse away, offscreen. When Milhouse stands up and goes to kick Fred's ass it's a totally different actor, much thinner and with a different haircut.
Continuity mistake: Fred lifts up Milhouse and throws him against a pile of bags. There's an abrupt cut and Fred suddenly appears meters away, allowing for Milhouse to defend himself and win the fight.
Continuity mistake: Fred pushes Milhouse into a gloomy corner, but in the close-up the place is shiny and with an orange light, then when the angle changes it's gloomy again and filled with smoke.
Continuity mistake: When Fred and Milhouse are fighting, Milhouse's glasses keep appearing and disappearing from his face.
Continuity mistake: The plane differs in model and decoration outside depending on if it's landed or flying.
Continuity mistake: The airport x-rays detect a gun in a bag. In the immediate close-up, the gun's position is totally different.
Continuity mistake: A woman stands alone announcing that the plane is cancelled and half a second later, from a different angle, she is several meters to the right surrounded by people.
Continuity mistake: When the woman holds the speaker and announces that the flight is cancelled, its distance from her head differs depending on the angle.
