Corrected entry: Something to note as the flesh alien is being sucked out of the Betty. In the previous films, the drones were designated as Xenophobes or Xenomorphs (skeleton on the outside), very similar to insects. When the flesh alien dies, the last thing we see is a nearly human SKULL.
Corrected entry: When climbing above the nesting grounds, one of the guys gets a dead, very heavy alien on his shoe. To save the crippled guys life and keep him climbing, he unhooks from the crippled guy and falls to his death. He didn't have to die, though. He could have just pushed it off with his other foot.
Corrected entry: The Auriga is a science vessel, but it is under military jurisdiction, run by soldiers specifically to control the aliens in the event of a breakout. When the aliens get loose, why do all the soldiers evacuate instead of fighting the aliens? As military personnel, they would have contingency plans in place for this sort of occurrence - US military strategists are ridiculously overprepared with worst-case scenarios that often have heavy costs involved, but mean that the military will never be so paralyzed that it just runs away. The Auriga should have a plan to fortify a single location or at least blow up the ship in the event of a mass breakout. (00:38:40)
Corrected entry: The scientists claim they procured blood samples on the Prison colony that allowed them to recreate Ripley. If you used blood to clone Ripley, then you'd get a clone of Ripley without a chest-burster inside her. The chestburster doesn't alter DNA.
Corrected entry: In the cafeteria scene, Wren refers to "the company" as "Weyland-Utanic" when the correct name is "Weyland Yutani", as seen and stated in the previous alien films.
Corrected entry: During the entire battle scene on the ladder, DeStephano is nowhere to be seen. Considering the fact that he has a gun, he could have helped out when the alien was attacking Christie, but instead he curiously disappears from the scene, until Call opens the door, and he is at the top of the ladder. (01:09:10 - 01:13:10)
Corrected entry: Why did the two aliens gang up and kill the third one to escape the holding cell? Later in the movie, it is established that these mutated aliens can apparently regurgitate their own acid blood as a weapon, so slaughtering the other alien wasn't really necessary; they all could've just vomited some acid on the glass or the floor and gotten free without dwindling their numbers.
Corrected entry: For some strange reason, in every close up shot of the actors there is a white ring around the pupil of the eyes. My guess is the camera reflection. It noticablely stays in the same position whenever they duck their heads down. (01:18:00)
Corrected entry: When the female scientist is showing Ripley pictures to see if she could identify them, there is a bad editing mistake. When the scientist shows Ripley the glove, she seems to silently mouth the words "Close....glove." This occurs before Ripley identifies the picture as "Hand", to which the scientist actually says "Close...glove." It seems that the shot was recycled and very poorly edited.
Corrected entry: Supposedly, the new Queen removed from Ripley is the only vector for recreating the Alien line: Perez is told that the Queen will begin producing eggs in a few days. But at the end of the movie, we find that the Queen is now using a reproductive system based on humans, giving birth to live young rather than laying eggs. If the scientists could salvage eggs from another site, why would they bother cloning Ripley?
Corrected entry: Why do the scientists bother to kidnap 12 humans to host the aliens? It seems it was quite difficult to obtain the human hosts in secrecy. In Alien 3 the Xenomorph grows inside a dog (or an ox in the directors cut version), and in the first movie it has grown inside an unidentified alien species. Surely it can not only grow inside humans. Scientists more than 300 years from now who are able to clone adult individuals would have thought of this. They could just have used monkeys, cows, pigs
Corrected entry: When the crew of the Betty gets through the kitchen and into the egg trap, the eggs begin making monster sounds when they open, such as growls and groans. The eggs aren't alive, and in all previous movies the facehuggers never made any sounds.
Corrected entry: When Gediman is rambling about the queen's new 'perfect mutation', he fails to realize how imperfect it actually is when compared to its normal state. Instead of cranking out hundreds of eggs in a short amount of time which can lead to a huge army being built in a matter of months, now the queen has to spend countless hours straining and suffering while trying to force out an awkward, bumbling monster that attacks her on sight. Hardly a situation that I would describe as 'perfect'.
Corrected entry: When the crew first meets Purvis, the guy with the alien inside him, Ripley explains to what the thing is. If you look over her left shoulder during this you can see a crew member moving around and eventually ducking behind a counter.
Corrected entry: When the hybrid Ripley finds the lab with all the failed 'Ripley/Alien' mutants, the grossly mutated Ripley she finds strapped to the table pleads with her: "kill me", etc. Now, if the scientists had to teach the hybrid Ripley to talk after they got the alien specimen they wanted, why would they also teach the reject to talk, especially to beg for her own death? I don't think the idea about residual memory holds true in this case; because then wouldn't the hybrid Ripley have the power of speech without the instruction of the scientists?
Corrected entry: If the newborn has acid for blood, (as it presumably does) wouldn't it make the hole in the window bigger as it was sucked through?