Movies that feature disembodied living heads.

In my new sci-fi fantasy ebook for Kindle, THE NINTH LEG, Adolf Hitler's disembodied head is kept alive inside the body of an artificial, robotic body. But the concept of living, disembodied heads is something that Hollywood has exploited in the past, sometimes effectively and sometimes not so effectively. Below are trailers from some of the movies that feature disembodied but still living heads.

"The Thing That Couldn't Die"

"The Brain That Wouldn't Die"

"They Saved Hitler's Brain"

"The Thing with Two Heads"