 For the scene where Rambo jumps from the cliff and falls through the  trees, Sylvester Stallone (qv) opted to do the last part of the  stunt himself, much to the concern of director Ted Kotcheff (qv).  His concerns were apparently well founded, as the stunt didnt go as  planned and Stallone broke three ribs. This apparently took place on  camera and the shot is in the movie.