Thx 1138 facts

While investigating facts about Thx 1138, I found out little known, but curios details like:

When George Lucas needed numerous extras with shaved heads for the filming of his movie "THX 1138," he hired some from Synanon, which has been called one of the "most dangerous and violent cults America had ever seen."

About the unpublished novel "Alien Exodus", a Star Wars prequel that involved a descendant of a main character from "American Graffiti" and included the society from "THX 1138", the latter of which were movies that George Lucas also directed, this novel was to be licensed by Lucasfilm

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 2 of the best facts about Thx 1138 I managed to collect.