Others have noted abundantly (so I didn't bother) that
1) The Golden Compass is coming out, and isn't nice to Catholics.
2) The US Bishops, however, think it's a jolly good thing.
3) The film has flopped.
Now, I notice, the US bishops have withdrawn their approval.
I do hope that it's in response to 1) above (albeit late), and not 3).
Read more about it here.