After Michael Moore was directly mentioned in Luigi Mangione's 'manifesto', as someone who can explain the shitshow that is the American healthcare system, Moore's response included posting his entire 2007 movie SICKO to YouTube, in its entirety, no ads.

Here's his full post about it: https://www.michaelmoore.com/p/a-manifesto-against-for-profit-health

Here's the movie: https://youtube.com/watch?v=YbEQ7acb0IE