Watched Shadow of the Vampire with Gwen last night. Excellent movie. In a way, Willem Dafoe was wasted in the role of Max Schreck, because Dafoe is already creepy-looking, but the character had so much makeup on that even Britney Spears would have been creepy-looking. But he did a wonderful job with the part.
And while this is hardly the first movie where the story involves a movie-inside-the-movie, where the movie and the inside-movie have parallel plots, this one seemed to subtly blur the lines in a way that I like.