In the truck stop bathroom when Lorraine accidentally calls 411 instead of 911, the cell phone battery icon displays as being nearly empty.
Later, in the car, after it rings inside her jacket, it is being displayed as completely charged.
At the factory when Roy shoots a few bullets to Larraine sitting in the car, he smash the front window of that car but immediately after, when Lorraine is driving the car to Roy to kill him, the front window of the car is intact.
Near the end of the movie, when Lorraine's character is holding the shotgun on Roy right after the car wreck, she fires the gun once over Roy's head, then pumps the shotgun, but no empty shell is ejected, which is impossible. Worse yet, she delivers another line of dialogue and then pumps the shotgun a second time without having fired it again and, once more, no shell is ejected. Roy would have known the gun was empty.