(We talk a great deal on Ken Russell's You Tube clips Here are comments and some responses from You tube about Mahler that I really appreciated and enjoyed.)
I actually like slower films, like antonioni or traffaut. But there is something about Ken Russell that is magical. For me he is the closest thing to the bombastic silent film directors to make films in the sound era. I can totally imagine The Devils as a silent film.
Watched this yesterday and I'm still thinking about it. What it does that I've never seen anything else do as acutely is show two people, with the best will in the world, tragically failing to communicate because of the way their personal experiences have shaped their viewpoints. At the start they're so estranged that they seem like monsters of froideur. By the end we understand them and finally, they understand each other – thanks to music. [more]

Thanks for uploading this!
You raise an interesting thought; Ken Russell is the anti-Tarkovsky. By being so excessive at being calculatedly over the top, Russell allows the intellectual cinema viewer to have a good laugh at themselves Tarkovsky, on the other hand, is excessive at being ponderously serious. One arisian shows humanity as something tragic, the other as something laughable.