Looking for the title of an old movie.
I have seen this movie once, a long time ago.
The movie was about a photographer who found if he put color crystal into his camera light he could keep the person soul that he was taking a picture of, keeping that person alive for as long as the soul was kept in the light. He did this to himself keeping him alive forever.
I remember a scene. The photographer was taking a picture of a public hanging. When he took the picture the soul of the man being hanged got trapped in the photographers light, keeping the man from dyeing.
This is is a very old movie, maybe late 60s early 70s. Thanks for your help.