There is a newspaper next to a barking dog. The newspaper jumps from place to place on the driveway. A man in a red robe picks up the paper and in the next shot of the driveway the paper is gone. Then it re-appears in the driveway, again jumping from place to place, then disappears again.
The first female victim in the car's trunk is bloated and wet from having been submerged for at least several days yet the blanket that she was wrapped in during that time is completely dry and shows no signs of having been under water at all.
When Captain Howdy is hanging from the hook and Mike sets him on fire, he is wearing a chest covering painted to look like his skin and tattoos. It's evident because his body suddenly becomes twice as bulky.