Many articles said she cried like a "mental patient" when her hair was chopped, so I think there's a good chance she knew what she was giving up and will be re-joining the long (or at least medium) hair ranks soon.

It was for a role, so I don't feel so bad. And some women seem to need a one-time short hair experience to get it out of their system.

stylenews.peoplestylewatch.com/2012/07/13/anne-hathaway-haircut-les-miserables/