Fresh out of the cinema I have a very good feeling about the movie. My first impression is that it is definitely worth seeing. Alex de la Iglesia (the director of for instance "El Dia de la Bestia" or "La comunidad") makes this time a mystery movie following the classical parameters. A nice plot, specially for those who like mathematics or logic in general, with intricate moves and very nice dialogs by John Hurt and Eliah Wood (who, by the way, looks like a pretty solid actor. I had only seen him playing Frodo and was a bit worried about him getting stuck on that character, not at all) who basically follow the classical thoughts about "the perfect murder" and in the philosophical search for absolute truths.
Being a fan of de la Iglesia, whose sense of humor is well known and pretty easy to recognize, I am quite happy to see that he is also able of making a genuine mystery film, with everything you expect to see on it, twisted arguments, funny characters ("Podorov", and of course, Dominique Pinon from, among others, Delicatessen) and a extremely good film-making, nice sequences, good mystery music, etc.
To me, being a bit of a geek, the mathematical references are too obvious, the series shown are too well known, they are nice nonetheless, but for instance why to talk about Fibonaci numbers (which were also in the 'Da Vinci Code' when one can talk about many other nice and funny series? On the other hand being a mystery movie's lover one always enjoys the sequences which are clear homage's to previous classics, pay attention and you'll enjoy.
Let me end up by mentioning the very nice work of Leonor Watling (you may have seen her before in, for example Almodovar's "Talk to her", her meaning she), who, apart from being a really good actress, of being extremely beautiful and attractive is also a pretty good singer! It was quite a pleasure, being Spanish myself, to see her playing an important role with such a great casting!
So, watch it by yourself, the first "serious" Alex de la Iglesia movie, and he does a pretty good job!
