Here's something I just found on Nostalghia.com, the Tarkovsky website. Tonino Guerra, Tarkovsky's longtime friend and co-writer of Nostalgia and Tempo di Viaggio, is asking the Master about Stalker, which he had then (1979) just completed. Tarkovsky's comments seem very prescient about the advent of digital filmmaking, and sums up very well how we're going about making Folie à Deux.
Tonino Guerra: Someone told me that you would like to completely change your way of making cinema. Is this true?
Andrei Tarkovsky: Yes, only that I still don't know how. It would be nice, let us say, to shoot a film in complete freedom, like amateurs make their films. Reject large financing. Have the possibility to observe nature and people, and film them, without haste. The story would be born autonomously: as the result of these observations, not from oblidged shots, planned in the tiniest detail. Such a film would be difficult to realize in the manner that commercial films are realized. It would have to be shot in absolute freedom, independent from lighting, from actors, from the time employed in filming, etc., etc. And with a reduced gauge camera. I believe that such a method of filming could push me to move much further forward.