White Zombie
A young couple traveling to Haiti to marry catch the eye of a wealthy plantation owner, who enlists a voodoo master to transform the bride-to-be into a mindless zombie under his control, in the film widely credited as the very first zombie feature ever made.
Hosted and streamed directly from the Internet Archive (archive.org), identifier: white.zombie.1932. This title is in the public domain or released under an open license — verify status on the source page before relying on it for redistribution.