If you’re not already aware of Open Culture you should bookmark or follow them for they are great resource. One post on their site notified me to the fact that the films of Andrei Tarkovsky are online legitimately. In the case of his last student film: the great The Steamroller and the Violin it’s been taken down, but the others are good to go. Be sure to click on the “cc” for subtitles.
It’s hard to believe that Tarkovsky authored but seven features. What he lacked prolifically he made up for with his impact.
I will be featuring all his films here.