(CAUTION: SPOILER BELOW)
We watched Mulholland Drive last Sunday (yesterday), and it has me pretty freaked. I mean, WTF is going on in that movie? I really liked Lost Highway, and there are plenty of similarities between the two (almost too many, one might opine), but at least with Lost Highway I was able to fit the ends of the mobius strip together and make it make sense. Mulholland Drive just has too much bizarre, unconnected stuff, it's too much of a puzzle for me. I think I might have to watch it a time or two more. One web site I found (google search: "mulholland drive what the fuck is going on") does a pretty good job of putting some of the bigger pieces into place, such as that the second part of the movie is "real", i.e. Diane is the real person, and the events shown really happen, while the first part is Diane's dream or fantasy, and Betty is her persona in that dream.
Actually, given that the first part is a paranoid hallucination, there's not a lot of point in making it all make sense. But still... why would Diane include, as part of her fantasy, finding herself dead and decomposing in her bed?
And also, Diane's neighbor comes to the door and says that Diane has been missed for three weeks. Where did those three weeks go? Was she magically asleep, only to be awakened by the Cowboy? And what's all that about, anyway?
Actually, it doesn't make sense to say that the second part is more "real" than the first part. I mean, the homeless guy has the blue cube? And when he drops it, the tiny loony old folks come out, and get into Diane's apartment, and terrorize her?