The Brain That Wouldn’t Die (also known as The Head That Wouldn’t Die or The Brain That Couldn’t Die) is a 1962 American science fiction horror film directed by Joseph Green and written by Green and Rex Carlton. The film was completed in 1959 under the working title The Black Door but was not theatrically released until May 3, 1962, under its new title as a double feature with Invasion of the Star Creatures.

A doctor experimenting with transplant techniques keeps his girlfriend’s head alive when she is decapitated in a car crash, then goes hunting for a new body.