Goofs
Audio/visual unsynchronised
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Character error
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Continuity
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Crew or equipment visible
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Factual errors
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Incorrectly regarded as goofs
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Revealing mistakes
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Spoilers
Audio/visual unsynchronised
When Call is about to be shot, the doctor says "You really are way too trusting" but the movements of his mouth suggest he is saying something completely different.Share this
Errors in geography
In the first view of Earth from space, the image is reversed. The horn of Africa, with the Red Sea above it, is pointing west instead of east.Share this
Factual errors
In the scene, where Ripley's blood breaches the window in the Betty's cargo hold and the Newborn is sucked out, judging by size of the ship, a cargo hold of that size should've been decompressed in mere seconds. The time it takes for the ship to fully enter Earth's atmosphere would've been more than enough to decompress the entire ship, let alone the cargo hold.Share this
Factual errors
Near the end just before when the newborn is sucked out into space, the hole in the window is just too small to create a suction of that strength as seen in the film, and one atmosphere of air pressure would be too little to squeeze the alien out of the ship regardless.Share this
Factual errors
Near the end of the film after the human/alien hybrid had just been sucked out of the hull breach, the ship is shown to be entering Earth's atmosphere. Even though the entire ship is awash with flames reaching 3000 degrees, the only effect in the room with the breach is sparks and flame coming from the hole. In reality, the interior of the hull would have begun to melt, and the increase in drag from the breach would have thrown the ship wildly off course, or even into a spin.Share this
Incorrectly regarded as goofs
After Ripley falls into the Alien's Den and taken to the Queen, that is when she finds out her gift to the alien creature is a human reproductive system. The Queen gives birth to the new hybrid. However, if that alien was given a human reproductive system, how was the queen impregnated? The Aliens reproduce in an asexual way. The Queen fertilized herself and gave birth to the hybrid.Share this
Incorrectly regarded as goofs
If Ripley's gift to the Alien Queen is a human reproductive system, why is she laying eggs? As a human female develops one ovum an a cycle, the Queen Alien does herself; the Eggs were the first cycle, the Newborn hybrid was the second.Share this