(at around 1h 14 mins) As Jupiter and Pluto are heading toward the trailer, the scar on Jupiter's face disappears for several shots.
(at around 12 mins) Brenda and Bobby notice a bird circling above, and Bobby says it is a turkey buzzard. However, the bird shown is not a turkey buzzard (also known as a turkey vulture) and is instead a hawk. The calls it makes are also not realistic for a vulture or a hawk.
(at around 45 mins) One brief nighttime shot of "Bobby" has been flipped: a cut on the right side of his face can be seen on the left hand side.
(at around 8 mins) Grandpa Fred rubs his fingers across a supposedly-fresh bloody hand print but it doesn't smear.
(at around 51 mins) After Mars pulls Pluto off of Brenda and throws him onto the trailer floor, Pluto's lips don't move when he says, "You son of a bitch!"
Just after Bob and Doug leave the group to find help, Beauty is seen to whine and whimper towards the horizon. However, she is clearly seen to be barking instead.
(at around 1h 15 mins) When Jupiter and Pluto are running down the wash, just prior to Beast attacking Pluto, you can see a couple of equipment bags belonging to cast or crew sitting at the right side of the wash.