When Michael is turning the Jeep around to run into Adam, he turns the steering wheel vigorously to the left, but the Jeep is making a right turn.
The body of the dead prostitute changes position between shots.
The toilet brush and cleanser switch hands back and forth in the very last scene where Laura is screaming in the street.
The coat hook embedded in the dead prostitute's head is missing except in the last shot when the security man is inspecting the body.
Laura's right arm jumps from Kyle's shoulder to being around his body as they kiss at their wedding.
Department patches are seen on the sleeves of the LAPD officer interviewing Kyle and Boyd after the minivan incident. LAPD is one of the few departments in the country that does not have any sleeve patches on the standard patrol uniforms.
When Christian Slater's character says that they will bury the body of the prostitute in Red Rock. Red Rock is a National Park, there are countless people there at all times, except at night when the park is closed and there is no access into it.
The scene where some of the men cite Jewish law regarding how they need to bury the two dead bodies is wrong because Jewish laws for burial don't apply outside of Jewish consecrated burial ground, and they also don't apply to non-Jews (which one would think an Asian woman and a black man would more than likely be, and the movie doesn't establish that they're any religion at all).
When Kyle Fisher is sitting in his wheelchair, the feet belonging to his supposedly missing legs can be seen underneath the seat of the chair concealed with black socks.
While driving the minivan to Las Vegas, it's clear from the interior shot that the gear selector is in the P (Park) position and the steering wheel is also in the wrong position.
When Kyle, Charles and Michael arrive at Adam's house by car, the camera dolly is visible just in front of the car at the bottom of the screen.
Incorrectly regarded as a goof. These guys also kill the hotel security officer, but no one seems to care that he is missing. The hotel would have a record of the noise complaint and that he went to the room to investigate. He had to have told someone. The investigation into his disappearance should have been quick and resolved easily.
There is never any indication of where the equipment wound up. that was used to dismember the prostitute and security guard. There would be incriminating evidence on the saw and any other tools used. No mention was made that these tools were buried with the bodies.
Adam, as a practicing Jew, would not have called his son by the same name.
At a Jewish funeral the coffin is made only of wood, so would not have metal handles.