Manina, the Lighthouse-Keeper's Daughter
Manina, la fille sans voiles (original)
Gerard, a 25-year-old student, decides to find a treasure Troilus lost in the sea after the Peloponnesian War. His meeting with Manina jeopardises his plans of finding the treasure.
Starring Brigitte Bardot, Jean-François Calvé, Howard Vernon, Espanita Cortez, Robert Arnoux, Raymond Cordy, Paulette Andrieux, Henry Djanik, Jean Droze, Nadine Tallier
Watch "Manina, the Lighthouse-Keeper's Daughter" on Tubi TV released in 1952. It's a drama and romance movie, and has a rating of 5.5 out of 10 from Imdb which is fairly okay for this kind of movie, and is currently available to watch for free.