There were many connections in doctrine especially regarding the " Great White Brotherhood", as well as being apocalyptic. Also, one of the main characters was a physicist. Many similar threads to RSE. For those interested, here are some links to more information.
https://en.wikipedia.org/wiki/The_Famil ... Age_group)
https://thebrag.com/anne-hamilton-byrne ... -has-died/
https://www.qt.com.au/news/children-of- ... -/3537261/
https://www.theguardian.com/tv-and-radi ... alian-cult
https://www.theguardian.com/film/2016/a ... unanswered
https://www.dailymail.co.uk/news/articl ... Byrne.html