Other mistake: Davis tells Kate to go and she jumps out of the falling plane, her chute opening. Davis then takes a minute to free Harvey from the plane as it's still falling before they both get out. Once they are free falling he takes a few seconds before he pulls their chutes as well. However as they are coming down close to the plane crash site, Kate is near level with them in altitude as they are all coming down together. With how high she was when she jumped out compared to the time it took for Davis and Harvey to get out of the plane and open their chutes, she would have been several minutes behind them in the sky, not right next to them. (00:47:45 - 00:49:05)
Suggested correction: She jumped first and would have already descended in altitude. Then the guys jump and freefalled and pulled their chutes so it is plausible they caught up to her altitude when their chutes opened.
Factual error: When the soldiers are in the woods looking for the wolf, they come across a group a deer that bolt between them and around them scared for their lives and spooked. The deer runs behind the soldiers and they look at each other wondering what happened. Then the giant wolf, Ralph, suddenly comes up from behind the soldiers and eats one. But the deer just ran towards the direction the wolf came from. Meaning the deer got scared, but chose to run towards the giant hungry mutant wolf.
Suggested correction: If you watch carefully, the deer run past them to the right and away from the direction of the camera. Then the wolf comes from right, but from closer to the camera. At the speed that wolf is moving, it was able to circle around them and then strike.
Factual error: When the protagonists are able to find the antidote, the doctor rightly slips on a thick rubber glove to take the vial container from a liquid nitrogen cooler (-195.82 °C), and then naively collects the vials with bare fingers, somehow not freezing her fingers off in the process. (01:13:45)
Suggested correction: Maybe it's freezing inside the container which it was in.
Continuity mistake: Near the end Harvey Russell shows up as George is lying against the building. He notices George has "died" and has his mouth open. The camera angle changes and his mouth is closed. (01:36:20)
Suggested correction: George didn't actually die and was playing dead, but was still slightly moving. Hence why his mouth is closed.
Character mistake: When George throws one of the soldiers through the cockpit door of the plane, you get a brief glimpse at the pilot and co-pilot, both of which are wearing a Bose headphone/mic set. However the co-pilot has his one backwards, with the mic bent from the right side when it's meant to be on the left. (00:44:50)