Continuity: Charles Walker has a gold tooth. In the scenes where he is wealthy it is on the left side of his mouth. In the scene where he is poor and dusty, pointing a gun at Kate, it on the right side of his mouth.

Continuity: in the scene where Mr. Sir gets angry at the boy who said, "What happened to your face?" he asks the campers if he looks good and you see D-Tent sitting in the upper left hand corner, everyone is sitting down. In the close up of D-Tent, X-Ray and Armpit are standing then. In the next shot with Mr. Sir, you see Armpit and Magnet going to sit down. Then back to Mr. Sir, you see X-Ray standing.

Revealing: In the overhead view of the bus driving across the desert to Camp Greenlake the dust behind the bus is CG, and near the end of the scene the bus moves up in the frame and the end of the dust trail cuts off with a straight line.

Continuity: At the end part, when the kids at Camp Green Lake go dance in the rain, we see Zero looking up and his hair is in the air. In a different camera angle, his hair is put down by the rain. But when the camera returns to him looking up, his hair is up again.

Continuity: The cast even points this out on the commentary: At the camp, where the tents and cabins are, there are trees at times and sometimes there aren't.

Deliberate "mistake": When Kate Barlow shoots the Sheriff, she shoots him between the eyes, but when she kisses him there is no hole or anything on his face.