In 1940 when this short film was made, the City of San Francisco had a population of about 634,000 and was the 12th largest city in the United States.
The narrator states that the Golden Gate Bridge is the longest single-span bridge in the world. This was true in 1940, but as of 2022, the Golden Gate Bridge ranks 18th in the world, though it still holds second place in the U.S. behind the Verrazzano-Narrows Bridge in New York City, which opened in 1964.