4K Newbie - Which 5 movies should I buy first?

I just purchased my first 4K blu-ray player this evening (Panasonic UB420) and it's time to start building my collection. In the hopes of not breaking the bank, I've decided to limit my first purchase to only five movies. My favorite genres are suspense/thriller and epic dramas. Which five movies would you recommend? I'll start with the first title that popped into my head: