All three colleges have a wide range of films for your viewing. Some are digitally streaming, others are DVDs, and a few are VHS tapes. In Tripod, you can find films by selecting the "Resource Type" filter and choosing "Videos" or "Other media" for streaming titles. You can also browse the films by looking in the stacks (shelves) at the films, many of which are organized by country.
Recently we subscribed to Kanopy, which has many streaming videos that you might find useful for your class. For a full listing of Kanopy streaming films in Tripod, see here. The number of films can be intimidating, however, so for browsing, the following will be helpful. Be aware, you must be using a computer at the institution for access to be granted.