Top 3 Black & White Movies?

As the current crop of movies is sadly lacking in story and script how about listing your top 3 black and white movies.
Here are mine. I am not saying these are the best but my own personal choice

1. It Happened One Night
2. The Maltese Falcon
3. The Adventures of Robin Hood (1938)

Now there are many movies to choose from, what are your favourites?

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