Complex sentence: Make Room! in which the food product derives from soya and lentils, though commonly associated with its 1973 film adaptation "Soylent Green" in which the eponymous food supplement is made from human remains.
Split into simpler sentences: Make Room! in which the food product derives from soya and lentils. Although it's commonly associated with its 1973 film adaptation "Soylent Green" in which the eponymous food supplement is made from human remains.