In terms of films that I expect to be watching again and again in the future: The Dark Knight, Dunkirk, The Fool (Russia, 2014), The Life of Pi, Leviathan (Russia, 2014).
Had you asked me a couple of years ago, I would have included Dogtooth by Lanthimos too, but I have grown out of his style.
I think this was a mediocre decade: there is an emphasis on making trilogies, sequels and prequels which leads to derivative scenarios IMHO, and much money (and talent) is now going to TV series. The likes of Nolan and Ang Lee still save the day.