This is a pretty horrible movie in terms of acting, plot, realism, special effects, etc. The one redeeming value is the following. Apparently it was made with the support of the local chapter of the Japan Karate Association, a "traditional" shotokan karate organization known for the rigor and quality-control of its training. So every once in a while you'll see people doing karate moves that clearly demonstrate they've spent years of practice on them.