In the cafeteria, Ripley's glass of orange juice goes from half-full to full.
When doing the autopsies of the Sulaco passengers, Clemens's blood stain frequently changes.
When Clemens pulls the blanket off Newt's corpse in the morgue, Newt's head points directly upwards. In the next wide shot, when Clemens walks away, Newt's head is turned away from the camera, despite nobody having touched her.
When Clemens performs the autopsy on Newt, her blood runs freely as if she had died very recently. However, she had been in the escape pod for a long time and then been frozen in the morgue. Even when defrosted, her blood would have congealed and would not flow or stain clothes the way it does.
The syringe plunger is moving in the wrong direction if he is trying to fill it from the bottle.
Actually, Clemens is not filling the syringe at that moment but diluting the contents of the ampoule he has just opened in a vial of another substance to prepare his "special cocktail". He is then seen to shake the vial to reconstitute it and picks up the syringe again to fill it.
Actually, Clemens is not filling the syringe at that moment but diluting the contents of the ampoule he has just opened in a vial of another substance to prepare his "special cocktail". He is then seen to shake the vial to reconstitute it and picks up the syringe again to fill it.
Ripley has Clemens perform an autopsy on Newt, checking for an alien embryo, though she says it's to check for a Cholera infection. With Ripley's experience with this creature, she has already learned that the embryo surviving depends on the host being alive. When Newt drowned in her cryo-tube, the embryo would have died with her. There was never a need to check her body.
Ripley still wanted to be sure what caused Newt's death, because if there was even a hint that an alien had gotten inside of her, there is the possibility that there could be others present.
Ripley still wanted to be sure what caused Newt's death, because if there was even a hint that an alien had gotten inside of her, there is the possibility that there could be others present.
After Clemens performs his autopsy on Newt for possible Cholera, he states that "There hasn't been a case of Cholera in over 200 years". Alien³ is set in 2279 (taking place directly after Aliens: El regreso (1986)), suggesting no outbreaks of cholera have taken place since 2078 at the latest. There have been regular outbreaks of cholera in the late 20th and early 21st century, but it isn't 2078 yet.
When we see the EEV crashing into the sea, the water splashes perpendicularly upwards - which would be impossible as there is strong wind blowing which should have blown the water away.
In the opening, we see a facehugger break through a cryogenic tube and as a result, the facehugger gets cut and we see a small spurt of acid spray onto the floor. The floor then starts dissolving. However, the floor is very obviously a piece of styrofoam so that it was easy for the crew to dissolve it with some acetone.
After Morse closes the channel door, trapping the alien in the piston chamber, he hollers "I'm going for the lead!" out of sync with his moving lips.
Early in the film the interior of the EEV is a mess, having been smashed up by the crash. However, as the movie progresses, it seems to be in a better and better condition and at the end it seems to be almost intact.
When the EEV report is being made at the beginning of the film, Ripley is listed as Lieutenant. Yet, Ripley's rank was always a warrant officer, a lower rank than lieutenant. While it's true that Burke promised her that she'd be reinstated as a flight officer, since they never returned to Earth after Aliens: El regreso (1986) it is unlikely that this occurred, and certainly not at a higher rank than she was prior to her return to LV-426.
In the autopsy scene, Clemens says that "I would consider it unwise to tolerate even the possibility of an unwelcome virus. An outbreak of cholera would look extremely bad on a report." Actually cholera is caused by a bacterium called "Vibrio cholerae".