Lord of the Flies (1990)

Director: Harry Hook
Inspired after the allegorical novel by Nobel Prize-winning author William Golding, the movie presents a group of young cadets from a military school that shipwrecked on a deserted island.
The main theme is the human condition and the shipwrecked "society" is a reflection of the human society from it's birth and till now. The movie is not just a simple story about some shipwrecked people, it has a much higher meaning. You will get it if you will watch it.