Continuity: As Brenda leaves the table asking "Does anyone need anything?", we see Bobby sitting by the table. When it cuts Bobby suddenly got something between his lips which weren't there before.

Continuity: At the start, one of the mutants swings a pickaxe into the back of the head of one of the researchers and it goes through their helmet. In the next shot when he hits the floor there is no hole.

Continuity: When Doug is fixing the system in the camper van while Lynn is speaking to him, he lowers his arms down from the system. Then as Lynn walks over to him, holding baby Catherine, his arms are instantly back up, tampering with the system again.

Continuity: When the gas station attendant is sitting at the table going through the bag, he has a cigar in his mouth, but it is not smoking. In the next shot it is instantly smoking heavily. Then, in the next shot, instantly, the cigar vanishes from his mouth altogether.