in the 70 and charlton heston star in sci fi flick of vary quality . soylent green be one of the good one . he play robert thorn and a detective in 2022 new york . in this future and most food be so expensive that everyone need a product call soylent green . but when thorn find out the unsavory truth about this product and he find himself on the run . i guess that it only natural that this movie should seem date to u nowadays . but even so and it still bring up interesting question about what will become of our agriculture . also star leigh taylor young and chuck connors and brock peter and joseph cotten and edward g. robinson ( in his final role ) .