With their current contract set to expire July 1st, the board of Hollywood’s largest union voted unanimously on Sunday to send strike authorization ballots to all of its 160,000 members unless a satisfactory agreement is reached by Friday.  SAG-AFTRA, representing actors, announcers and broadcast journalists, has been negotiating with the Alliance of Motion Picture and Television Producers for a new three-year contract.  The union says the studios have ‘failed to make sufficient progress’ on their most critical issues and instead have proposed ‘outrageous rollbacks’.  Three quarters of those voting would have to approve a strike authorization.  Members of the Writers Guild of America similarly voted to authorize a strike against the AMPTP in April, though a strike was averted when the union and the studios reached an agreement in May.