A Scottish movie director named Grant McPhee is making a movie about the Illuminatus! play and the Liverpool School of Language, Music, Dream and Pun. He has posted a teaser clip on X that includes Peter O'Halligan, Ken Campbell, Jim Broadbent, Chris Langham, Robert Anton Wilson, Bill Drummond and Chris Bernard. I particularly liked the brief clip of Robert Shea talking.
As the clip is not on YouTube, I can't embed the video here. When I asked McPhee on X about embedding the video and for details of the movie, he replied, "Only on Twitter for a few days Tom. Details of the full film release will be here, sooner than later. Thanks!"
McPhee has directed some movies I want to try and has written a book about Scottish postpunk rock music, he seems quite interesting, see the Wikipedia bio and also his official page. I am now following him on Twitter/X and will provide more information about the upcoming movie as it becomes available, so stay tuned.