A push by the Screen Actors Guild to defeat a recent accord negotiated by a rival union has touched off an internal rebellion. New York members of SAG’s national board took the unusual step Thursday of openly criticizing their leaders over a decision to launch an “educational campaign” against a contract negotiated by the smaller American Federation of Television and Radio Artists. Citing what it says are shortcomings in the AFTRA accord, SAG’s national executive committee last week narrowly approved a plan to persuade 44,000 joint card holders to vote down the agreement. For the full story visit http://www.latimes.com/business/la-fi-sag13-2008jun13,0,967855.story