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Other mistake: Mike sabotages the parachutes...of which there are exactly four, like the number of survivors. A bit scarce for a Boeing with a staff alone double that size.

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Stupidity: Mike's motivations lack any plausibility. He sabotages the depressurization process because he does not want the creatures sucked away, but rather sell them to laboratories. Greed is his sole motive, but (besides the fact that he can easily sell the dead ones as he originally planned) he is willing to blow himself up with the plane lighting a dynamite stick (?), only because he really wanted to make a few extra bucks and wasn't happy with insurance money and the millions promised by the girl.

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Continuity mistake: Don and the others find the corpse lying face down into the money. The larger bloodstains are faithfully rendered from one shot to the next, but the bills and the actor's hand have changed position. (01:09:00)

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Continuity mistake: After the alien attack, the hole on the rich guy's forehead changes size between shots. (01:08:35)

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Continuity mistake: The rich guy keeps putting stacks of money inside the briefcase, but it never fills up, with gaps appearing at the cut in spots he previously filled. (01:08:25)

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Factual error: When Don records the flight log, he says that they have been in the storm for 5 hours. That does not seem to match the timing of the events in the movie, but on top of that, it's a Vegas-Phoenix flight. That's a 250 miles distance that would take little more than one hour. (01:07:30)

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Continuity mistake: After being violated in bizarre fashion, Janet slumps to the floor. Her dead body rests on the floor in a different position (arm on chest) just after. (01:05:10)

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Continuity mistake: Don whacks the alien crab on the roulette; the cards on the table are different between shots (there is a cluster of three cards that is on the left, then on the right of the dead beast, for instance). (01:03:50)

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Continuity mistake: When Don probes the first planter with the golf club, the position of the various plants changes between shots. (01:03:40)

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Continuity mistake: The barf puddle on the green changes in between shots, and Pat has her mouth open when Don pulls the alien out of her mouth, but closed in the shot that follows. (01:03:00)

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Other mistake: Pat faints on the green, blocking the shot of the rich patron. Since the curtains were open and the group of four people was facing the entrance, which is right by the golf hole, it's impossible that nobody saw her slowly stagger her way to the green, nor heard her wheeze. (01:02:40)

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Other mistake: Jack's eye pops out in a spurt of blood; besides the phony CGI effect, he manages to spray with blood the part of the glasses that faces the camera (the same direction he is facing) and not the side that faces him. Moreover, lengthy blood drips appear on his cheek only at the cut, absent in the first shot. (00:56:45)

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Revealing mistake: After the crew decided (rather arbitrarily) to use fire to scare the monsters off, the camera zooms on Jack. The zoom through the plane window is a digital effect with the plane being all CGI, and it shows because the perspective is all wrong. Jack would have never been visible from the window at that distance and at that angle. (00:55:55)

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Stupidity: If there was a live camera feed right where the eggs were, one wonders how everyone missed the 'small' fact that they hatched. That of course combined with the fact that going for no reason in the nest of the creatures that nearly killed another crewmember is suicidal, and Bob goes with no weapons and with one small plastic fruit crate to fetch eggs that are bigger than an ostrich's. (00:55:25)

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Other mistake: The virtual chess game ends with the queen taking the other queen and then the king as the word "Checkmate" flashes. Ignoring the fact that technically the king is never taken even when checkmate is declared (many videogames add flamboyant animations), it still was not a checkmate. The king in B1 had C1 to go to, it is not under threat. (00:50:55)

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Revealing mistake: When the co-pilot searches for the missing tentacle wielding a hatchet, the creature creeps under the carpet. The distortion from the CGI effect on the rug is easily noticeable. (00:49:40)

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Continuity mistake: Carol reports to Mike Don's message about the strange creatures eating up the plane's electrical system. Mike removes his visor at the cut, and suddenly on his chair you can spot the fingers of the woman next to him, who had her hand in a different spot before. (00:42:45)

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Continuity mistake: Mike and the rich couple sit down to play some Virtual Chess. The brunette puts her hand on the guy's shoulder, but at the cut it's on the armchair's back. (00:41:25)

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Plot hole: Everyone is by Jack to try to help with the alien monster up his nose. By "everyone" we include the pilot and the copilot. Throughout the rest of the movie they wander about plenty times, both at the same time. The automatic pilot was knocked offline by the storm, and as Bob mentions in a later conversation, it was never fixed. So, who is driving the plane? Rhetorical question.

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Revealing mistake: Jack is lying on the couch (whoever managed to fetch him back from the nest is anyone's guess) with an alien tentacle up his nose. The special effect used to display the invading organism swelling his brains is an obvious image morph that does not look in any way plausible visually alone - let's not even consider the glaring anatomical issues. (00:39:55)

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