I liked that film. Actually saw it in an art-house theater, appropriately enough!
But it didn't really go into operational detail (of course) and only talked about how he'd done things historically... when he and his style were less famous.
Nowadays, his style is so iconic that a passerby would recognize it, know who was doing the work, and stream it to the internet. I just gotta think it is even harder today to do what he does... and will only get harder over time.