Its from a promotional 1976 documentary announcing GH were going to complete "Game of Death" somehow.
http://www.youtube.com/watch?v=yQvntXQE ... 0H7O2AWwmU - I wonder when this was found? Could be that HKL or Cine Asia couldnt secure it if it was found some years ago. Very interesting (the Bey commentary makes it seem perfect as a DVD extra).