See here for the film: https://www.youtube.com/watch?v=rEuLrzBrbeQ.
Jean Skinner is a spiritualist medium who has the rare gift of transfiguration in trance. This is a form of physical mediumship in which ectoplasm from the body of the medium forms immediately over the medium's face like a mask. In this interview she describes her career and insights. See here for more information: https://mediumshipandlifeafterdeath.wordpress.com/tag/transfiguration-medium-jean-skinner/.