Classic public domain film, digitally preserved and free to stream forever.
Convict 13 (1920) is a Buster Keaton comedy short in which a hapless golfer is knocked unconscious, mistaken for an escaped convict, and thrown into prison — where he must survive a series of increasingly dangerous encounters with the warden, a hulking criminal, and a prison riot.
Starring Buster Keaton, Sybil Seely, and Joe Roberts. This film is in the public domain and free to watch, download, and share.