A 1932 Seance Summoning the Dead

The Spiritualist movement lasted into the motion picture age, which is why we have this rare footage of a medium, Meurig Morris, calling forth the spirits. She channeled a spirit she called the Power. In this video, she is joined on stage by Lady Jean Conan Doyle, whose husband, Sir Arthur Conan Doyle, was an avid follower of the paranormal. Read more at Mental Floss.