Charlton Heston questions Paula Kelly about the murder of a wealthy food tycoon in MGM's futuristic suspense film, "Soylent Green." Charlton Heston, Leigh Taylor-Young and Edward G. Robinson star in Metro-Goldwyn-Mayer's "Soylent Green" a suspense story set in the year 2022. Chuck Connors, Joseph Cotton, Brock Peters and Paula Kelly co-star in the Walter Seltzer-Russell Thacher Production directed by Richard Fleisher in Metrocolor and Panavision(R). The screenplay by Stanley R. Greenberg is based on the novel by Harry Harrison. A detective tracking down the assassins of a powerful food company executive uncovers a secret so devastating that no man who knows it can live.