Light In The Piazza (1962) Olivia de Havilland, George Hamilton, Yvette Mimieux

Meg Johnson (Olivia de Havilland) is very protective of her daughter, Clara (Yvette Mimieux), a gorgeous young woman who suffers from a mental disability. While on vacation in Italy, Clara meets the dashing Fabrizio Naccarelli (George Hamilton), who is immediately smitten with her and doesn’t initially grasp the extent of her developmental handicap. Though Meg is wary of letting Clara fall into a romance with Fabrizio, she realizes that he may be able to give the girl a better life.