Looking for films from the 1970s that have aged incredibly well

I'm talking almost as good as The Godfather here - I want to see the very very best of that decade and I'd really love some help. What would you guys say are the best films of the 70s?Note: I'm strongly considering watching all the Tarkovsky films because they are normally mentioned when I ask about this. via /r/movies http://ift.tt/2t7XDmi