Mid-way through the film, the courthouse is shown flying two flags from the same staff, with the Lone Star flag above the Stars & Stripes. Texas flag etiquette dictates that the state flag should never be flown higher than the national flag, out of deference.
Following the opening action sequence, when Sharpe is introducing his partner to Eddie Zane, his hat shows a small tear on the brim at one o'clock to him. In subsequent shots, the tear has disappeared.
When Heather is talking to Sharp, she says that Full Metal Jacket is her favorite movie, but goofs on where Private Joker's "Born to Kill" and his peace symbol are located. She claims that there is one on each side of his helmet. In reality, the "Born to Kill is on the front of his helmet while the peace symbol is a pin on his collar.