This Richard Dawkins documentary, The Fifth Ape, deals with the philosophical and social ramifications of the theory of evolution.
To find out whether sexual selection plays a role for altruism and kindness among humans, he visits women who are looking for sperm donors, as well as a sperm bank manager. One of the sperm banks most popular donors is a really nice guy. Dawkins explains that all organisms are survival machines. How does Dawkins define the selfish gene? What is kin selection? What is altruistic helping?