This 1980 version of the oft-filmed Henry Devere Stackpoole novel The Blue Lagoon was the first to be stamped with an "R" rating. The basic story remains unchanged. Two very small children, a boy and a girl, are shipwrecked on a lush tropical island. They are cared for by fellow castaway Leo McKern. When he dies, the kids, played with a minimum of clothing by Brooke Shields and Christopher Atkins, have no one but each other. When they grow into teen-hood, they also fall madly in love. Heavily reshaped and reedited before its release, The Blue Lagoon's principal attribute is the lush photography by Nestor Almendros. In 1990, a sequel was made, Return to the Blue Lagoon.
~ Hal Erickson, All Movie Guide