I saw a film called The Cranes Are Flying (Летят журавли) one time through the Criterion Collection. It had such amazing cinematography. I loved it.

Here are a few: Alexander Nevsky; Battleship Potemkin; Hamlet (1964); Solaris; Leviathan....

There´s a bunch of Russian movies based on the Sherlock Holmes stories, that are a nice way to enjoy very well produced films as well as learning some Russian. English subtitles available. https://youtu.be/VzwBIvVwuOg?list=PLTdpJpQ5RUKbtZysOJnhr53TOUehIdM45

Not 'Leviathan' for sure :D