Revealing mistake: When Dolph is shot, Brandon says, "It went straight through," meaning that the bullet went straight through Dolph's body. However when it cuts back to Dolph later you can see the bullet has entered the heart region. In other words the heart would most likely be damaged and Dolph would have been dead. (01:09:20)
Revealing mistake: When Dolph breaks the neck of the Japanese guy, you see the guy reaching with his arm for Dolph even though he is already dead. (00:36:00)
Revealing mistake: In the scene where Dolph gets shot, he says, "It went straight through." However, almost immediately afterwards it shows his back to the camera and there is no bullet hole out the back.
Revealing mistake: When Dolph throws a thug over the bar you see the bench the thug lands on band, and there is a hole right under the bench in the wall. You can see right through the wall when the bench bends. (00:07:30)
Answer: It was a body double. She was a young and inexperienced actress who was uncomfortable doing nude scenes. However, she did pose for Playboy many years later and said, "She felt comfortable being nude."