Mel Gibson can enjoy some rare good news in the run-up to this week’s release of The Beaver: His ex, Oksana Grigorieva, has dropped her claim of domestic violence against the actor. TMZ reports that both the judge and Gibson’s lawyer were “visibly shocked†by the development, which Grigorieva has agreed to in the hopes that it will lead to a more amicable resolution in her custody battle with Gibson. [TMZ]