I would suggest anyone interested look into the history of the precursor to the cia, the oss, and how relationships with Hollywood movie studios developed and formed throughout the mid 20th century.
Discussion
Links?
These guys did an extensive series in mk ultra - it’s an entertaining listen.
And then just google and wiki whatever catches ur fancy and go digging
https://open.spotify.com/episode/5I2WlAH4ImmMX15L4zNeIM?si=u-gwLvnESd2RYlIkifTfrw
Love that podcast!