Sátántangó
If you want some serious cinephile cred, you can't do better than this seven-and-a-half-hour epic by the Hungarian master Béla Tarr, known for making long, grimy, long, dark, strangely poetic, long movies like Werckmeister Harmonies and The Turin Horse. Sátántango (1994), restored in 4K, is based on László Krasznahorkai's brutal experimental novel about a collective farm collapsing under the weight of its members' greed, betrayal, and hopelessness.