Go see it. It's the "sequel" to the Devil's Backbone.... so if you've seen that, you can pretty much gauge what you're getting yourself into for this movie. A dark account of a child's life during hard times and how they cope with it through fantasy. It's pretty much like My Neighbour Totoro or Spirited Away.... but really, really, really dark. Also, it's great to see with any lady friends you have, as their is much scariness. My girlfriend loved it and I really liked it too.
LoL funny you mention that Bovine... it was the first movie I took my now girlfriend to see
Very interesting movie, didn't know it had a prequel