Levi-Straus, a French anthropologist in the 1900’s theorised that the majority of narratives contain binary opposite characters.

These may include:

Man Vs Woman e.g “His Girl Friday” (1940, Howard Hawks)

White Vs Black : “BlackkKlansman” (2018, Spike Lee)

Hero Vs Villain : Huge amount of films that link to this, I’ll choose “Batman” (1989, Tim Burton)

And more.