A new documentary film chronicling the work of the Salem, MA coven the Temple of Nine Wells has a trailer on YouTube. The group was led by Gypsy Ravish and her late husband Richard, who also established the popular shop Nu Aeon and mail order business White Light Pentacles. In 2011 the Temple celebrated 20 years of Samhain rituals at Gallows Hill, a milestone that appears to be the subject of the film.
I will update this space as I find out more about the documentary and any news of its progress. The film also has a Facebook page.