Is ‘Mulholland Drive’ a ‘Twin Peaks’ Movie?
It has always seemed to me that Twin Peaks was a turning point in the career of David Lynch, a point at which he developed the themes and ideas that would ripple through the rest of his work. Twin Peaks feels like Lost Highway feels like Mulholland Drive feels like Inland Empire in ways his earlier work doesn’t share. There are currents of duality, dream states, dubious identities, the symbiotic relationship between sex and violence, and betrayal in each of these films, but two in particular I’ve come to believe share more than thematic similarities. Brace yourselves: I think Twin Peaks, Twin Peaks: Fire Walk With Me, and Mulholland Drive all exist in the same universe, because I think Mulholland Drive, like those other works, is ultimately about The Black Lodge.
via https://filmschoolrejects.com/fan-theory-mulholland-drive-f80c481945e8