well if you want to help someone who is unconscious you are should lay that parson on the back and lift her/his legs, that way there will be enough blood going to the head. so I guess that's a good thing to regain consciousness, but I don't know, it's just a movie after all. or you could try it yourself: ask one of your friends to knoxk you down and then to hang you upside down and then tell us how much time you needed to wake up... *anxiously awaiting result of this experiment*