A very exclusive movie club indeed...

It Happened One Night (1934) is a film in the rarest of company when it comes to Oscar winners. It is one of only three films which have won the big 5 - Best Film, Best Actor & Actress, Best Director & Best Screenplay. The other two movies in this exclusive club are One Flew Over the Cuckoo's Nest and The Silence of the Lambs. The link below takes you to a page which provides more details on the exclusive three and there are clips to enjoy as well...  

https://culturedvultures.com/the-big-5-academy-awards-and-the-movies-that-won-them/