Try searching for "Black and white films" to find a lot of oldies, but goodies.
Search under "Documentary" to view our holdings. Examples include Nanook of the North (shown below) and Bowling for Columbine.
Note: You may want to use the advanced search option and couple your term with the documentary's subject, such as the environment, education, etc.
Feature examples include The Big Sleep, Double Indemnity, and The Maltese Falcon.
Searching for "Silent films" will provide you with a list of everything from the pre-talkie era.
