The Question and Answer section for Children of Men is a great resource to ask questions, find answers, and discuss the novel.
They are both tired and desheveled as the story progresses. They also become more and more deperate.
I recall that the problem was that women could not get pregnant.
Alfonso Cuarón, the director, paints a grim vision of the near future. His cinematography is very grey. There is a sense of hopelessness. The world is imploding because people simply do not care for a world without children. People simply just get...