him, the killer is crushed by the hydraulic shovel of a police riot-control vehicle. In researching the case for Thorn, Roth brings two volumes of Soylent Oceanographic Survey Report, 2015–2019, taken by Thorn from Simonson's apartment, to the team of other "Books" at the Supreme Exchange. The "Books" conclude from the oceanographic reports that the oceans are dying and can no longer produce the plankton from which Soylent Green is made. This information confirms to Sol Roth that Simonson's murder was ordered by his fellow Soylent Corporation board members, who knew Simonson was increasingly troubled by the truth and feared he might disclose it to the public. Roth is so shaken by the truth that he decides to "return to the home of God" and seeks assisted suicide at a government clinic. Thorn rushes to stop him, but arrives too late. Before dying, Roth tells his discovery to Thorn. Thorn moves to uncover proof of crimes against humanity and to bring it to the attention of the Supreme Exchange so the case can be brought to the Council of Nations to take action. Thorn secretly boards a waste truck transporting human bodies from the euthanasia center to a waste-disposal plant, where he witnesses human corpses being processed and turned into Soylent Green. Thorn is discovered, but he escapes. As he returns to the Supreme Exchange, he is ambushed by Soylent operative Fielding and his men. Finding refuge in the church where Simonson confessed, Thorn kills his attackers, but is seriously wounded in a gun battle. As paramedics tend to Thorn, he urges Lt. Hatcher to spread the truth while shouting to the surrounding crowd, "Soylent Green is people!" Cast Charlton Heston as Robert Thorn Leigh Taylor-Young as Shirl Chuck Connors as Fielding Brock Peters as Hatcher Paula Kelly as Martha Edward G. Robinson as Sol Roth Stephen Young as Gilbert Joseph Cotten as William R. Simonson Mike Henry as Kulozik Lincoln Kilpatrick as The Priest Roy Jenson as Donovan Leonard Stone as Charles Whit Bissell as Santini Celia Lovsky as the Exchange Leader Dick Van Patten as Usher #1 Production The screenplay was based on Harry Harrison's novel Make Room! Make Room! (1966), which was set in the year 1999 with the theme of overpopulation and overuse of resources leading to increasing poverty, food shortages, and social disorder. Harrison was contractually denied control over the screenplay and was not told