Great sites
Continuity: After the sergeant has a parasite bug forced into her, she grabs a syringe kit left on the table by the medic. When she flips it open, there are 7 (maybe 8 at most) syringes in the kit (the last one is broken). A few moments later, private Sandee follows a trail of syringes left on the ground to the sergeant. There are at least 7 syringes on the ground, and 3 others in the sergeant's thigh.
Factual error: During the mess hall fight between the Sergeant and Horton, the Sergeant cuts the private's head with a cleaver and raises it "to show us". Horton's head is heard breathing and the breathing sounds react to the bug coming out of the head's mouth. I know the parasite bug makes the host's body quite resilient, but wouldn't the head still needs lungs to produce breathing sounds of that kind?
Continuity: When they fix the door, while the door is moving up, we see three cables going over the door's track and strapped somewhat together. On the next shot, while the door is moving down, there are only 2 cables visible and they are positioned in a different way. It is also worth noting that earlier in the movie, when they try to close the door for the first time, the three cables are positioned in a totally different way.






