Henry De Vere Stacpoole

Richard and Em are children when shipwrecked and marooned alone on a lush tropical island. By the time they are rescued... (imdb)

This sequel to The Blue Lagoon finds Richard (Brian Krause) -- the orphaned son of the lovers from the original 1980 pic -- stranded on an island with a widow, Sarah (Lisa Pelikan), and her daughter, Lilli (Milla Jovovich). When Sarah dies, Richard and Lilli grow up together and, like their predecessors, fall in love. But their happiness is endangered when civilization intrudes (Netflix)

Two children are shipwrecked on a desert-island and fall in love while growing up together. (imdb)

Two high school students are left stranded on a lush tropical island in the Caribbean for three months as their friends and parents desparately search for them. Meanwhile, the two young students try to survive and find love.

John Evans encounters his lookalike, Malcolm Scott. When Scott is killed in an accident, Evans finds himself mistaken for Scott and decides to do some good in his new role. (imdb)