And, if you're talking about the greatest Classically made film - I'd argue strongly for Curtiz's CASABLANCA in all its earnest, r... Casablanca An Affair to Remember

Using familiar tropes can provide a reliable emotional payoff, but subverting them keeps the narrative fresh.

This is the heart of romance—the "yearning" created through clever repartee, stolen glances, or obstacles that keep the pair apart even when they want to be together. Common Tropes and Their Subversions