 David Hess (I) (qv) "Krug" from  _Last House on the Left, The (1972)_ (qv), was originally cast in a  major role and recommended friend Sage Stallone (qv) for the part  of "Swan". After a week of shooting, the producer chose not to label  the film a remake and replaced David Hess. Stallone quit, but was  under contract which forced him to complete his scenes.