WASHINGTON, July 28 -- Law firms assisted companies in the following recently announced transactions: * * * Weil... ...advised AMC Entertainment Holdings, Inc. on a comprehensive refinancing that strengthened its capital structure and balance sheet. The transactions involved approximately $244 million in new financing, the exchange of $590 million in existing notes for $857 million in new Senior Secured Notes due 2029, and the equitization of $143 million of Senior Secured Exchangeable Notes, more ST