Wow, look at all these opinions
This review may contain spoilers. I can handle the truth.
I didn't expect it to be so poignantly queer. Katherine Keener and Cameron Diaz steal the show. Charlie Kaufman's obsession with the subconscious, psychology, and identity is easily traced through this film. Also reminiscent of Jonze's Her when Diaz is speaking through Malkovitch to Keener.
I don't think Kaufman has made a bad movie.
This is a great film. Hilarious, sexy, and surprisingly scary. The films aesthetic feels timeless; there are some truly wild transitions that impressed me, and the cinematography is ahead of its time. The practical effects are dated but I think that actually improves the movie.
Anyone who likes Japanese film and can tolerate a bit of gore should watch this.