Classic public domain film, digitally preserved and free to stream forever.
The Brain That Wouldn't Die (1962) is a cult horror film in which a surgeon keeps his fiancée's severed head alive after a car accident while he searches for a new body to transplant it onto — not knowing that the head is developing psychic powers and has formed an alliance with the grotesque creature locked in his laboratory closet.
Starring Jason Evers, Virginia Leith, and Anthony La Penna. This film is in the public domain and free to watch, download, and share.