For those who were wondering why on earth the latest Tangled Web story is called "Flowers for Rhino"... then obviously you don't read enough 1960's Sci-Fi. The plot is adapted from a short story (later a novel, and then a movie) named "Flowers For Algernon".
The movie was called "Charley", or something similar. It revolves around a retarded man who becomes involved in a scientific experiment to boost his intelligence. I haven't read the novel or seen the movie, but the original story is heart-wrenchingly beautiful, and is a perfect introduction to some of the great short story work which proliferated in that period.