Continuity mistake: Liam loads a stretcher in a van. The interior is a Chevrolet. The outside view is a Ford with a bubble window and drives away. Then the next scene shows the gas gauge on a Chevy dashboard. But the worst is at the gas station. While he was filling the van you can see the "express" tag on the door, which is Chevrolet with no bubble window. In the next frame you see the side of the van. Definitely a Ford and the bubble window is back.
Audio problem: When Deacon is talking to the cop's brother's corpse, he says "you're not talking to me now?" and his lips aren't moving. And moments later, he says "what? You don't want to?" And "you don't talk because..." Same things, his lips don't move.