Soylent Green is a 1973 American ecological dystopian thriller film directed by Richard Fleischer, and starring Charlton Heston, Leigh Taylor-Young, and Edward G. Robinson in his final film role. It is loosely based on the 1966 science-fiction novel Make Room! Make Room! by Harry Harrison, with a plot that combines elements of science fiction and a police procedural.

In 1973, it won the Nebula Award for Best Dramatic Presentation and the Saturn Award for Best Science Fiction Film.

https://en.wikipedia.org/wiki/Soylent_Green