The Blue Lagoon

In this 1980 film directed by Randal Kleiser, two young cousins, played by Brooke Shields and Christopher Atkins, find themselves stranded on a deserted tropical island after a shipwreck. As they grow up in isolation, they must learn to survive and navigate the complexities of adolescence and burgeoning emotions. The movie is notable for its lush cinematography and the performances of its young stars. For those interested, it can be viewed for free on Soap2day.