Editor’s note: A previous version of this post misidentified the legal expenses of Mattel and MGA. The correct information is included in the tenth paragraph below. The Am Law Daily regrets the error.

O’Melveny & Myers has filed suit against MGA Entertainment seeking payment of $10.2 million in unpaid legal fees related to the company’s long-running legal dispute with Mattel over ownership of the popular Bratz line of fashion dolls.