I did this list before, back when there were only 29 movies that had won *both* the Academy Award (US) for Best Picture *and* the BAFTA (UK) for Best Film--the last one being "Nomadland" (2020). But I had to update after "Oppenheimer" nabbed both awards earlier this year.
Note that the BAFTA's (the UK equivalent of the Academy Awards) were first presented in 1947, for films made/released in 1946, so the first 19 years' worth of Academy Awards didn't have the opportunity to make this list. Sorry, Casablanca....
List image: The Artist, by *far* my favorite of the movies on this list (and there's a *lot* of competition for that honor).