Most film and TV programs (unless very old) are protected by copyright. If film is not protected as an entity, older films are often protected as a collection of stills - so there will still be copyright issues to consider.
So while use in research, study and teaching may be ok, other uses may require permission. Film and TV programs should always have full citation details (see moral rights).
We acknowledge and pay respects to the Elders and Traditional Owners of the land on which our four Australian campuses stand. Information for Indigenous Australians