Soylent Green is a 1973 science fiction movie starring Charlton Heston, Edward G. Robinson, Leigh Taylor-Young, Joseph Cotten and Chuck Connors. It is loosely based upon the 1966 science fiction novelMake Room! Make Room!, by Harry Harrison, about overpopulation, but it diverges to its own pointed plot points and ideas. Soylent green is the supposedly natural, but really artificial, plankton food product at the center of the story. Because of the film's cult popularity, the term "soylent green" and the famous last line "Soylent Green is people!" have become catch phrases in English. Many subsequent works refer to Soylent Green for either dramatic or comedic effect. The original 1966 novelMake Room! Make Room! is set in the year 1999, with the theme of overpopulation and overuse of resources leading to increasing social disorder as the next millennium approaches. It mentions "soylent steaks", but makes no reference to "Soylent Green" or to the movie's themes of euthanasia and...This information was automatically generated from Freebase article Soylent Green. You should replace/update it...