The Four Horsemen of the Apocalypse (1921 movie)
The Four Horsemen of the Apocalypse is considered an important film. Because of this, the Library of Congress's National Film Registry is preserving it and making sure it doesn't get damaged. The film is also in the public domain because it is so old. (It was released 94 years ago.) The Four Horsemen of the Apocalypse can be downloaded for free on the Internet Archive.