"Mulholland Drive is about duality and duality is about Mulholland Dr.

Duality is opposites, good/evil, straight/gay, love/hate, person/doppelganger etc. etc.

Duality, yes, Duality. No, but to David Lynch duality is a very broad term. He shows it in mirrors, in colors, in numbers, in repeated words and phrases, in copying things from old movies, in scenes or individual shots that are repeated. Duality is continuing things from one movie to another - whether they are his or not his films.

Duality is opposites, good/evil, straight/gay, love/hate, person/doppelganger etc. etc."