Goofs

Levi is driving the pickup truck on dirt paths in the woods. Will is chasing him on an ATV. There's a split on the path and the truck takes the left fork, which slants downhill. The ATV goes to the right, which leads uphill. When the truck is seen again, it is traveling across the screen from right to left, directly in front of the ATV. There was no chance for the truck to get to the opposite side of the ATV.

When Will's character jumps on the ATV to chase the pick up truck with his son in it, his shirt hikes up and reveals a lower back tattoo that was not present in the prior scene.

The sheriff deputy yanked one hand out of the cuffs, but a bit later, both of his hands were free of cuffs, which would be unrealistic, both because of the difficulty and because if one hand is out, there is no need to damage the other one by pulling it out.

When Will was teaching son Danny how to fire his rifle, he was careful to explain that the safety was on when he gave the weapon to Danny, but the boy aimed it at the tin can targets and fired it anyway, without visibly switching off the safety.

Although it had rained earlier, none of the uncovered papers on the bulletin board in front of Earl's showed signs of having been touched by the rain.

Towards the end of the movie, Levi shoots more than 24 shots from his handgun without running out of bullets or changing clips.

Dottie and the other deputy pull up to see the sheriff with a gunshot wound to his head and Levi's dead body, and the deputy just assume's that it was a legit kill and doesn't attempt to even disarm Billy.

Although the characters involved in law enforcement are referred to as "Police", the color of their uniforms is that of Sheriffs. The village of Granville (Ohio), where this movie was said to have taken place has a police department with navy blue uniforms.

Laura is gagged, but can still scream and talk with the gag in. Also, her hands are tied in front of her, so she could easily pull the gag down at any time, but doesn't.

Peterson contacts Howell over the radio to tell him that they found Charlie's shell casings at different locations, but this is something that would have been communicated to Howell immediately (earlier in the day), not at night as if it was just discovered since in the previous scene Will went back that there were no more cops on the scene (except Richie).

When Danny hits Richie in the forehead hard enough to knock him semi-conscious and off of the ladder, there is no dirt or mark on Richie's forehead when he hits the ground. Also, Richie has to have the slowest reflexes in the world to stand there and stare at Danny for a few seconds without flinching or moving to avoid getting hit in the head.

After having been kidnapped and seeing his mom with a gun to her head, tied up, and gagged, the first thing Danny does when Howell is shot is run to Levi to check on him instead of his own mom.

Although Levi has a significant head start and is driving a truck, Will and Richie catch up to him w/in a few seconds on ATVs.

The deputy that was handcuffed to the tree could have tried to move up the branch and either slip his hands off of the branch or use his weight to break the branch and get free, but instead decided to rip his hand out of the cuff.

When Levi throws the key before getting shot, and when Will picks up the key, a jingling sound is heard, but the key was by itself and not even on a key-ring, so there is nothing for it to hit in order to make that sound.

The sheriff deputy lets out the same scream when he has a flashlight shined in his eye as he does when he busts his hand punching the call and ripping his hands out of handcuffs.

Laura is going to use the hook and pliers to remove the bullet from Levi's shoulder, except when dropping them in the boiling water to disinfect them, she doesn't open the pliers. The inside of the pliers would need to be disinfected too, which is common sense and as a surgeon (or anyone w/ common sense about this sort of thing), she would know that.

The scene with Howell sitting in the diner as another cop comes in to speak with him appears to use a body double when filming Howell from behind, and that body double not only doesn't have the same hair pattern as Howell (shaved head vs balding), but he might even be a different ethnicity (noticeably darker).