Two farm silos can be seen behind the two girls when they get out of the truck, where in the previous scene there was nothing behind them except an open field. Then the silos disappear again at the end of the scene.
When the girls get into the truck and ride with the driver, the passenger side window changes position between shots.
In the beginning, where they're driving to the concert, when they're in the car interior, it's clearly night outside, however when it switches to a wide shot of car exterior, it's clearly morning. This switch happens 2-3 times.
When the girl is jogging in the first scene, the shadow of the camera is visible in front of her.
When the killer tries to sneak away after being hit over the head, his shadow is seen on the lower right corner of the screen as he sits up and walks away.
When the girl is talking about rearranging the bathroom of the old abandoned house, we can hear a car horn in the background (at around 23 mins) despite them saying that they're miles away from the nearest person.
When the girl is sitting in the car by herself waiting for other cars, you can clearly see tail lights of a car driving behind her.
When they say that they aren't going to stop until they see a gas station to the right of the car in the distance is a Shell gas station.
When the two girls walk around the truck and find the truck driver's body, a light set up on a tripod is very clearly visible behind them, also crew member's car can be clearly seen (at around 25 mins). Furthmore, when they run away down the road at 56.59, the truck and lighting are gone.
In the scene where they enter the cellar, when the group goes down the stairs, the shadow of the microphone man is clearly visible.
A crew-member's hand is clearly visible, holding a small red light bulb as the group walks toward the stairs.
A crew member's hand is visible holding a lit candle, as the girl is reading the newspaper clippings.
The boom mic is visible several times when the kids are talking in the hallway by the lockers.