I have a very emotional relation to this Keith Jarret concert. A school friend of mine loved it, and always played his style at the school piano. And I joined him improvising on each piano I encountered.
Unfortunately this movie doesn't show a single piece of the famous concert, just the background story. But this is impressive enough. So much that I dont believe that much drama. I worked in the opera an the Bühnenmeister might have forgotten the soundcheck, but not the concert for sure.