Soylent Green is a 1973 dystopian science fiction movie depicting a bleak future in which overpopulation, global warming, and the resulting severe damage to the ecology have led to widespread unemployment and poverty. Real fruit, vegetables, and meat are rare, expensive commodities, and much of the population survives on processed food rations, including "soylent green" wafers.

The film overlays the genres of science fiction and the police procedural as it depicts the efforts of New York City police detective Robert Thorn (Charlton Heston) and elderly police researcher Sol Roth (Edward G. Robinson) to investigate the brutal murder of a wealthy businessman named William R. Simonson (Joseph Cotten). Thorn and Roth uncover clues which suggest that it is more than simply a bungled burglary. The film is loosely based upon the 1966 science fiction novel Make Room! Make Room!, by Harry Harrison.

A tale of Earth in despair in 2022. Natural food like fruits, vegetables, and meat among others are now extinct. Earth is overpopulated and New York City has 40 million starving, poverty stricken people. The only way they survive is with water rations and eating a mysterious food called Soylent. A detective investigates the murder of the president of the Soylent company. The truth he uncovers is more disturbing than the Earth in turmoil when he learns the secret ingredient of Soylent Green. Written by Mystic80

In the year 2022, earth's face has completely changed. New York's population, for example, has grown to 40 million mouths to feed. The greenhouse effect has risen the temperature into nearly unbearable regions, and the people are kept in the cities by law. The rich live in separated luxury apartments (with women as part of the rented furniture) but also experience the lack of natural food. Strawberries are at $150 for a glass of them. Police Detective Thorn investigates a strange murdering case of an official from the Soylent corporation, which feeds the masses with a palette of their creations: Soylent red, yellow, or, even more nutritious, green. Written by Julian Reischl

In the year 2022, the starving masses depend upon government manufactured food items called Soylent Green, Red, and Yellow to exist. But in the midst of a murder investigation, a cop named Thorn (Charlton Heston) uncovers the chilling secret of the green product. Written by Ray Hamel

The year is 2022. New York City has become overpopulated with 40 million people and pollution has caused the temperature to be risen and all natural resources have been destroyed, leaving 40 million people starving. The Soylent Company has create a new food product, Soylent Green. In the overpopulated and polluted New York City, police detective Thorn is assigned to investigate the brutal murder of an corporate official of the Soylent company, William R. Simonson. Thorn's investigation into Simonson's murder leads him to uncover a conspiracy in the Soylant company and the Soylent Green food product itself, where Thorn uncovers the horrible truth about Soylent Green. Written by Daniel Williamson