Performance (1970)

> A violent East London gangster (James Fox) undergoes a transformation of identity while hiding from his former colleagues in the home of a jaded Bohemian rock star (Mick Jagger) and his two girlfriends.

I listened to my dad's classic rock CD collection as a teenager and got into the Rolling Stones. I learned that Warner Bros. greenlighted this movie because they thought it would be the counterpart to The Beatles' lighthearted A Hard Day's Night movie, but were sorely mistaken. Lots of messed up stuff went down during filming, James Fox quit acting and became an evangelist for several years after starring in Performance. It's the movie that started me on the redpill, it got me interested in occult influences in the entertainment industry, philosophy, and it introduced me to the Old Man of the Mountain, getting me interested in Persian culture

https://www.youtube.com/watch?v=qzE8boSgKqs
https://www.youtube.com/watch?v=qd5NRgIhuO4