This year at the Oscars all four of the acting awards were won by non-Americans .
a) This had happened once before ..which year was it?
b) Who were the 4 non-American actors ( includes actresses too) who had won the Oscars that year?
Hint: They won it for the following films- My Fair Lady, Mary Poppins , Zorba the Greek and Topkapi.
I googled it ....
When Helle Berri & Denzel Washington...Got Best Actress & Best Actor Award.