so no one is going to answer this question ..
A general consensus emerges to determine happiness.
Books have more detail while movies show more of the facial expressions one may have. Movies also have budgets, while books often times do not. Books do not need paid actors or a million dollar set.
Answer:
Tsotsi is a thug, someone who kills for money and suffers no remorse. But he starts changing when circumstance finds him in possession of a baby, which acts as a catalyst in his life. A chain of events leads him to regain memories of his childhood and discover why he is the way he is.