Revealing mistake: When Eli goes into the building after moving the planks in the fence, you see the wall of the building shake. (00:15:35)
Continuity mistake: When Amanda is about to die, she gets dragged by the corn plants and they pull her shoes off. But then when she is running away she has her shoes back. Then when she slips on the pole she has socks on. (00:43:30)
Continuity mistake: As Mrs. Elkman eats her corn, bugs fly out of her mouth. As she leans back her napkin jumps from her lap to the table. (01:06:30)
Continuity mistake: The pattern of blood on Eli's face changes between shots, after slashing his foster parent. (01:13:50)
Factual error: When Malcolm's head is ripped off by the corn stalks, his spinal cord is absurdly long.