 When the original director, Gary Nelson (I) (qv), left the  project, Bruce Malmuth (qv) took over production. When he couldnt  make it on his first day to shoot the train chase,  Sylvester Stallone (qv) directed the chase himself to not miss a  day of shooting. This caused trouble with the Directors Guild.  Guild rules state that a Directors Guild member cannot be fired so  an actor can take over directing a film he is starring in, so the  producers asked for and received special permission for Stallone to  direct the scene.