The reason Universal has decided to open Charlie Wilson’s War against four other 12.21 releases — Sweeney Todd, Walk Hard, National Treasure: Book Of Secrets and PS I Love You — instead of the previously slated 12.25 is because they’re figuring they can beat Sweeney Todd, which is going for the same semi-educated, over-30 demo. Book of Secrets will have the family-action audience, and the under-30 comedy fans will go to Walk Hard.

And the Harvard Law School grads who patronize every Will Smith film no matter what will still be lining up I Am Legend, which will have opened a week before.

L.A. Times reporter John Horn thinks Charlie Wilson’s War is run into trouble because the date change. But the films that are really going to suck it are Book Of Secrets and P.S. I Love You.