When the GBI agent tells Ralph (Ben Mendelsohn) about finding the van, he first calls it (properly) an "Econoline" and a sentence or two later calls it a "Chevy". Econoline is a Ford model.
When Terry (Jason Bateman) is brought in for his arraignment, he is walked in front of a jeering crowd. While it is a key plot point, this would NEVER happen without the suspect minimally wearing a Kevlar vest, ESPECIALLY an accused child killer. In reality, the suspect would have been brought into the courthouse through a secured entrance.