Revealing mistake: When the two women first enter the sheriff's station there is a dead deputy on the floor with a Beretta 92 in his right hand. There are two mistakes in this scene. First, he supposedly died firing the gun, but the hammer is decocked which has to be done manually. Second, one of the shots shows three spent cartridges on the ground. The shells have brass crimping opened on the front. Real shells have no need for a crimp because of the lead bullet. It is obvious that they fired three blanks out of the gun and used those shells in the shot.