- Continuity: The blood disappears from the newborn's hand between shots when it caresses Ripley's face.
- Incorrectly regarded as goofs: Ripley retains an inherited genetic memory, even though she's a newborn in some sense.
- Continuity: When the alien reaches up through the grating and they show Elgyn getting pulled down, there is a big hole burned into the grate in front of him that was not there just a second before.
- Continuity: The figure 8 on Ripley's arm is missing in some scenes.
- Audio/visual unsynchronized: In the nest, when the scientist says: "First everything was normal...", the movements of his lips clearly doesn't match the spoken words.
- Continuity: The look of the legs does not correspond between the practical and computer-generated Aliens; the CG ones have an extra joint at the ankle, while the practical Alien shot by Vriess is shown with human looking ankles (i.e. without an extra joint) as it is seen crouched on the grate from below. Also, it lacks the long toes of the CG Aliens, instead having more human-like feet.
- Revealing mistakes: As Vriess hangs from the ladder with Christie on his back you can see the harness tying him to the ladder.
- Continuity: When Christie draws his guns behind his back, the following shot shows his arms by his sides hanging casually with no guns.
- Continuity: When the guards discover metal on Johner, Call is looking up/down between shots.
- Continuity: When Ripley undergoes surgery, Gediman cuts her chest below her breasts. Later, Wren checks the scar which appears in the upper section of the chest, between her breasts.
- Continuity: In the shot just before the clone lab scene, nine people walk past the camera. At that point in the movie there are only eight people.
- Continuity: When Call gets into Ripley's cell, she takes a stiletto from her left boot with her left hand. In the next shot, as she walks towards Ripley, she's holding it with her right hand.
- Revealing mistakes: The barbell Christie swings at Ripley is bent, revealing it to be rubber (it's straight in the previous shot, where he punches it in her face).
- Incorrectly regarded as goofs: In the first three films, it takes an extremely long time (long enough to require freezing of the passengers) to get between populated places in space. In this film, the ship is able to travel from "unregulated space" to Earth itself in as little as three hours. However, we have no idea what "unregulated space" is (it could be very near Earth for all we know) and there have been two hundred years of technological development since the first three films anyway.
- Continuity: After the operation, Ripley is held in a "staging area" in what looks like a thin sleeping bag. In the first scene her legs and her head clearly stick out. In the next scene, she is inside the bag and has to slice it open with her fingernails.
- Audio/visual unsynchronized: In the fight in the gym, Ripley hits Christie with the basketball, knocking him to the floor. As he falls, he is no longer holding the barbell, but there is no sound of it hitting the floor.
- Revealing mistakes: After Ripley falls into the Queen's nest, a pan out shot shows the Auriga heading towards Earth, however, as seen by the visible landmasses, the image is transposed (East Africa, Red Sea, and Arabian Peninsula have been flipped across a vertical axis).
- Continuity: The size of the blood splatter Ripley tosses to the floor of the gym changes between shots.
>>> WARNING: Here Be Spoilers <<<
Goofs below here contain information that may give away important plot points. You may not want to read any further if you've not already seen this title.
- Audio/visual unsynchronized: SPOILER: 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.
Related Links