viewfinder. The actor or stunt performer will probably still surprise you when they come flying through the glass, because firstly, they will still do their last minute psyching before they jump, (which may be longer than you think), and secondly, the stunt always looks so spectacular that you cant believe your film could ever look so good.Dont take your eye away from the viewfinder until at least two to three seconds after the actor and glass has finally settled, this is just to cover yourself in terms of shot length. Also you will want to protect yourself from any last minute flying debris coming towards the camera. Having continued rolling for a few more seconds, you can now cut. Provided you have followed all the correct procedures, you should have accomplished the shot with spectacular success. If, in the one in a million chance you notice your actor lying in a pool of blood in front of the camera, dont panic. Obviously, you did not equip your actor with enough safety gear, and you will know to pay more attention to this next time. The one advantage of this however is that you can continue to roll camera and get some footage of the actor injured and hurt, which will make the audience believe the scene even more. Of course if the actor is hurt you must attend to them immediately, and get them to a doctor or to the hospital. However, you still may as well get one shot of them, it will only take a few extra seconds and will be worth it. However, this is truly the worst case scenario, and to just repeat, if you follow the correct procedures, and pay particular attention to safety, everything will run smoothly. Once again I stress the point; when performing a stunt like this in the industry, you would employ the services of a safety officer and stunt person. If this particular stunt was performed for a production with a budget, there would not be much difference in the way it was actually carried out. The basic difference wo...