In this modern day of mass and quick communications via a host of new media, Spiritualism seems to have fallen by the wayside as a subject for film.
However there are many good short clips on Youtube about the subject (one is below) but we hear there is a new Spiritualist organisation that is to concentrate on producing documentaries about Spiritualism that will include attempts to show as much physical evidence as possible.
More about that when it comes to hand.
Here is a short film about the history of Spiritualism made by the SNU.