Maybe you’ve never heard of this movie (or the 1954 book by William Golding). Try the book first. Its sustained drama shames the movie. Half of the movie is about boys in tattered clothing running through the forest—that’s not what Lord of the Flies is all about. 
The briefest possible summary: a transoceanic flight loaded with young British schoolboys crashes near an uninhabited island. The surviving boys (no adults) struggle to create and maintain a primitive civitas. They fail. Their attempt at the simplest kind of self-government is wrecked by a cohort of boys who are persuaded by the charismatic, sociopathic Jack to indulge their inclinations to hedonism and barbarism. Ralph’s idealistic efforts (Piggy tries to help) to establish order are fruitless. Jack’s “hunters” end up killing two of their fellows before the grown-ups arrive to rescue them.
Golding’s Lord of the Flies (1963, not rated, 92 minutes) leads any defender of the common good to despair of “civilized” behavior that benefits all.
Read of listen to Lord of the Flies by William Golding
Watch Lord of the Flies on DVD
