When libraries purchase access to a film (physical or electronic), they do not own the copyright. Copyright law, therefore, determines what use is legal. Acceptable educational uses of films include:
You can request we buy a film using the e-reserves form
Commercial streaming services like Netflix, Amazon Prime, and Hulu do not license their works to academic libraries. Netflix provides a YouTube channel for documentaries they open up to educational use.
What if you need a digital copy of the entire film (A)/ or need clips of the video (B)?