Corrected entry: In the scene where Duke and Samantha are in the lab and Goat stands up behind the glass, right before he kills himself he makes the sign of the cross. However, he touches his forehead, chest, right shoulder, and then left shoulder. The correct order is touching the left shoulder and then the right shoulder.
Corrected entry: In the scene where Samantha Grimm and Duke are carrying the wounded Dr. Carmack to the lab, all of the sudden a new character appears in the scene to assist them. This brunette female in a lab coat wasn't with the soldiers or Samantha when they entered the complex through the airlock, nor was she helping them with Dr. Carmack prior to this scene. Now all of the sudden she appears from nowhere to help them and no one question who she is or where she came from. Then a few minutes later Samantha tells her to go ahead and leave to be with her daughter. What daughter? Then she just leaves the lab unescorted.
Correction: Sam already knows who the woman is, as she says that she's sure the woman's husband was okay. So obviously they have been working together, which is also how Sam knew the woman had a daughter and told her to go be with her. As for her leaving unescorted, I believe this was before they knew any monsters were roaming about or that they felt the RRTS had the problem under control.
The lab you are talking about is the infirmary and it's not in the high-security lab complex that's under lock-down, but rather part of the atrium where the 79 employees are standing around before they've been evacuated. Because if you remember, after the sewer imp was killed, the marines were carrying Goat, and the imp in a body bag, while running across the atrium and while telling everyone to get to the Ark before they've arrived at the infirmary with Goat. But then how did that dog, that wasn't killed with the other lab animals, got in the Atrium? I'm talking about the dog that was lurking in the hallway before it was scared off by the Imp that attacked Duke before it got trapped in the wall. It's possible that the dog got through the airlock, that separates the lab complex from the atrium, after the Hell Knight opened it. Because after the Hell Knight decapitated Mac in the Archaeology Dig site, Sarge and Reaper were chasing it out of that area, into the atrium back to the airlock that's left open and covered in blood, so maybe the demon entered the atrium from there. I guess it wasn't locked or the Hell Knight was smart enough to open the locks. It's the only explanation. Another mistake is that if you pay attention to the map on the computer, it states that the infirmary is in the lab complex rather than part of the atrium. When Reaper went looking for Sam after the Hell Knight went through the Ark, he went through the airlock, meaning he was looking for her in the lab complex before coming back to the infirmary where she has learned that the infected humans are choosing who to infect. That would mean Reaper had spent minutes combing the labs while looking for her, when in fact she was never there. Another thing I don't understand is that why two of the six missing scientists that were found in the airlock that leads outside to the surface of Mars managed to get there from the labs before they've been killed while trying to escape. Is there a way to enter the dig site from the labs rather than get there via the atrium? Because it was never established in the film. But then there had to be, because I don't think they went though the airlock to atrium and travelled to the dig site, because they'd be already safe in the atrium and wouldn't need to go to that airlock. Remember, Mars is a dead planet and the atmosphere can't support life, so if they were trying to get to the surface then they were probably trying to commit suicide since they didn't had any suits on them and Sarge is sure that they weren't trying to stop something from getting in but rather something stopped them from getting out. I know that I should file this under the 'mistakes' section but I'm just making a statement.
Corrected entry: In the scene where John Grimm and The Kid are in the sewer and The Kid is rambling on, John pins him against the wall and notices his eyes are dilated and asks if he is high. Even though he is on something, his eyes would be dilated anyway being that they are in a dark sewer.
Correction: There's a difference in pupils being dilated to see in darkness, and being dilated from being high. If high, they are slow to respond, and usually fill out almost the entire iris. If adjusted to dark, they will be more responsive to changes in light, and not quite as large.
Corrected entry: Towards the end of the movie, the Rock and the gang get back to the arc station in Nevada and everyone in the staff gets infected. At one point, the Rock starts shooting at a monster and runs out of bullets. He throws his gun down and begins to pull his other gun off his shoulder. While doing this, he bangs the gun on a pipe behind him making a loud noise and a funny facial expression.
Correction: And the mistake is what, precisely? Because, let's face it, people do accidentally bang things in real life.
Corrected entry: Early in the movie, Sam states that C-24 enables greatly accelerated cellular growth and regrowth. Judging by the rapidity of mutation of the bad guys affected with it, the same applies to the 'demons'. Even more so, Reaper's wounds from before his transformation heal after it is done. However, that is not the case with Dr. Willkins' appendix, Dr. Carmack's ear, and Pinky's lower half, thus letting the viewers and characters recognize them.
Correction: There is a difference between repairing injury (i.e. healing a cut to the face) and rebuilding lost organs or structures (such as the non-regenerating cartilage of an ear, an appendix or an entire half of the body). The regenerative powers are depicted entirely consistently.
Corrected entry: Throughout the film, Sarge refers to his men as "soldiers" and even addresses his own men as "soldier" at times. Marines never call themselves soldiers, as soldiers only pertain to the army.
Correction: This is purely an opinion based on present-day Marines who, for all we know, have no links of any kind to the futuristic group portrayed in the film. Sarge can call his troops anything he wants, short of getting their names wrong, without it being a mistake.
Corrected entry: Dr. Carmack is placed in the medical lab after being found, carried in through the nanowall. Said wall isn't left open and unwatched afterwards, yet he manages to get on the other side of it. It is established that there are other routes out of the laboratory, but if they enable one to reach the other side of the nanowall, what is its purpose there in the first place?
Correction: Goat retained enough thought and sence to be able to kill himself after being reanimated; Carmack could easily use the wall.
Corrected entry: The skeleton of Lucy and her child- they wouldn't die in that position (her shielding the baby) if there were mutants/demons attacking; she'd be torn apart, thrown against a rock/wall, etc. as would the child. The only way they could die and be preserved in that manner would be if she died from a volcano (ie Pompeii). When asked "How did [she] die?" Samantha replies "We don't know". Death by volcano is easy for a master archaeologist to spot.
Correction: Reaper and Samantha are not talking about Lucy and her child specifically, but the entire race they belonged to. Sam describes how their extra chromosome made them smarter, stronger and healthier, and also how the extra chromosome must have been artificially made, since earlier skeletons don't have it. Reaper then asks "If they were so smart, how come they're so dead?", to which the answer is "we don't know". So the conversation is about why an entire race of advanced beings suddenly died out, something a volcanic eruption would not be capable of.
After they finish discussing how such a super race died out, Reaper makes a rhetorical statement asking what she was protecting the baby from. Ultimately I think this is a character mistake by Reaper, assuming the skeletons were found in the same position as they are being displayed.
Corrected entry: When the RRTS squad first enters the research part of the facility they take an air sample. The sample shows Chromium, Magnesium and Lead. The symbol used for lead in the movie is Ld, not Pb as it should be.
Correction: There's nothing to suggest they're using the periodic table symbols. They're just 2 letter abbreviations. These are soldiers, not scientist, so "LD" for "lead" would make more sense to them.
Correction: Orthodox Christians make the sign of the cross touching their right shoulder first, the way Goat does.
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