Make Room! Make Room! - Harry Harrison
This is another of those movies I remembered from back in the 70's. The film was actually called Soylent Green. This one was a Charlton Heston movie. The only thing I recall really was the scene where he was yelling "Soylent Green is people!".
I found that this book was quite good. The film I remembered is VERY loosely based on this book. It comes down to being a science fiction (dystopian) story in an seriously overpopulated New York City and the problems that creates, along with some characters that have the same names. The story is not the same. The dramatic scene at the end of the movie is nowhere to be found in the book. It is a very different story altogether.
This is one of the few times I will say this, but I loved the movie...and I loved the book.
They were so different that it is pretty easy to separate them and call them two different stories.