The right to show video in the classroom doesn’t rely on fair use. In fact, there is a separate part of copyright law that lets teachers show video in class. However, consider these four points. You can show video:
- During face-to-face teaching
- When viewed in a classroom or other place of instruction
- With a lawfully made copy
- As a regular part of instruction and directly related to content being taught
a teacher wanting to show a Netflix movie would have to log into Netflix using a personal account. The user agreement the individual agreed to when he or she created the Netflix account prohibits showing movies in a public venue, which may be a contract violation. (However, Netflix does permit the showing of some documentaries in class.)
Don’t let that discourage you. Ask your librarian