Do you have a favorite book or movie that has made a lasting impact on you? If so, what is it and why did it resonate with you?

Book: Kazohinia. It describes human beings very well. What we do to each other and why, how could we make better and why we aren't better. Movie: The Man from Earth. The plot of the move is 7-8 people talking in a living room. That's it, but it's more interesting than most movies I've ever seen. It don't want to spoil it to anyone, but it shares deep thoughts.