David Morgan writes: “The comic book adventure Iron Man, which helped spearhead the massively successful Marvel Cinematic Universe; The Little Mermaid, which launched a renaissance of Disney animated musicals; and the Billy Crystal-Meg Ryan romantic comedy When Harry Met Sally, whose fake sex scene offered a punchline for the ages, are among the films named today to the Library of Congress’ National Film Registry, aimed at preserving classic motion pictures for future generations.” LC has selected 25 films for preservation based on their cultural, historic, and aesthetic importance to America’s film heritage every year since 1989.