Because this material is so obviously constructed to bear a message, a film made from it will work best if it concentrates on the story elements and lets the symbolism take care of itself. Hook's version does neither. The symbolism is right up front and unmissable, and the story part - the events that in theory should cause our throats to tighten and our pulses to quicken - is pretty lame. Once you understand what is going to happen (and even the viewer who has never heard of the book will not take long), there are few surprises. It happens.
In 1996, Peter Brook organised a reunion for the cast members for a documentary film called Time Flies . Brook was "curious to know what the years had done to his cast, and what effect the isolated months of filming had had on their lives".  Although none seemed damaged by their time working on the film, Simon Surtees, one of a pair of twin brothers who played Sam and Eric, "put his finger unerringly on the ethical dilemma. The problem is that most of us are not trained artists, so I now believe Peter runs the risk of abandoning us to our fate, just as he did in 1961, when he plucked us from our schools and our homes, put us on the island, then cast us back to live our lives as if nothing would ever change." 
Jack expertly uses the beast to manipulate the other boys by establishing the beast as his tribe’s common enemy, common idol, and common system of beliefs all in one. Jack invokes different aspects of the beast depending on which effects he wants to achieve. He uses the boys’ fear of the beast to justify his iron-fisted control of the group and the violence he perpetrates. He sets up the beast as a sort of idol in order to fuel the boys’ bloodlust and establish a cultlike view toward the hunt. The boys’ belief in the monster gives Lord of the Flies religious undertones, for the boys’ various nightmares about monsters eventually take the form of a single monster that they all believe in and fear. By leaving the sow’s head in the forest as an offering to the beast, Jack’s tribe solidifies its collective belief in the reality of the nightmare. The skull becomes a kind of religious totem with extraordinary psychological power, driving the boys to abandon their desire for civilization and order and give in to their violent and savage impulses.