 Cliff Robertson (qv) saw more than one TV production hed starred  in turned into hit movies with other actors (such as  _Days of Wine and Roses (1962)_ (qv)), so when he starred in the  1961 _"United States Steel Hour, The" (1953)_ (qv) production of  "The Two Worlds of Charlie Gordon," based on the novel "Flowers for  Algernon" by Daniel Keyes (II) (qv), he bought the rights and  later was responsible for turning that story into this film.