This adaptation of Edgar Allan Poe's classic tale was directed by James Sibley Watson & Melville Webber. It is a silent movie, with a run time of just thirteen minutes, and offers an interesting interpretation of the story. You can find out more about The Fall of the House of Usher at A Passion For Horror .
You can stream The Fall of the House of Usher (1928) free and legally on OldReel, via the Internet Archive.
Yes — it is in the public domain and can be watched and shared freely.