The Opening Brief in Brinker Restaurant v. Superior Court was submitted to the Supreme Court on January 20, 2009. Technically, it wasn't filed, since an application for permission to file an overlong brief accompanied the submission.
You can read a copy of the Opening Brief yourself here [Editor's Note: This is the Petition, not the Brief - the corrected link is below], via Acrobat.com.
CORRECTION: Here is the correct link to the
Brief. The link above is the Petition for Review.
CORRECTION 2: Due to a problem with the document, I am unable to post the Opening Brief at this time. I apologize for getting your hopes up. If I receive a corrected document in the future, I will make that available here.