I really like Mulholland Drive, but I seriously genuinely for the life of me cannot understand why everyone says it's so mysterious and confusing. To me, it couldn't be clearer that the first half of the film is a dream, and the second half is reality. I know this isn't an original or unique interpretation, but I do think that people only claim that the film is any more enigmatic than that because it's a David Lynch film, and you're, you know, not supposed to understand David Lynch films. I read an article in the Guardian (online) in which they got various critics to give their interpretations of the film, and one of them dismissed the dream theory on the basis that it was "too simple". What a crock - as if the only art that is valid is art that we can't understand! To me, the film was infinitely more powerful and moving because I could get my head around it.