13 films have this honor...
- My Man Godfry (1936)
- Mrs. Miniver (1942)
- For Whom The Bell Tolls (1943)
- Johnny Belinda (1948)
- Sunset Boulevard (1950)
- A Streetcar Named Desire (1951)
- From Here to Eternity (1953)
- Who's Afraid of Virginia Woolf? (1966)
- Bonnie and Clyde (1967)
- Guess Who's Coming to Dinner (1967)
- Network (1976)
- Coming Home (1978)
- Reds (1981)
Could a 2009 film gain this honor? Probably not, but maybe...
- An Education (Carey Mulligan, Peter Sargaard, Emma Thompson, Alfred Molina)
- The Lovely Bones (Saoirse Ronan, Mark Wahlberg, Rachel Weisz/Susan Sarandon, Stanley Tucci)
So in short...probably no chance unless the Academy doesn't just love one of these films but wants to throw everything it can at one of these two films.
Side note: No film has won in all four categories, and 4 of the films listed above actually had 5 nominations due to double nominations in a category.