During dinner Kat's tattoo is clearly shown being eaten by her boyfriend when they are eating a turkey shaped piece of meat. But later on her full (turkey shaped) torso is shown on the table in the "kitchen".
The goof items below may give away important plot points.
One of the girl victims is shown being pulled apart by four riders on horseback. This is impossible. The four riders hold the girl spread-eagled (in a four pointed star position) and ride off - pulling the girls arms and legs off in unison. The fact is the ropes would need to be attached to the "horn" of each saddle to give this sadistic endeavour even a remote chance of success is beside the point. This is not possible, as the ropes would be directly pulled taut over the riders position. The film depicts the horse riders holding the ropes in one hand. The ropes would have pulled all four off their rides and given them severe rope burns.