In what could be the biggest blow to the entertainment industry since last year's Writers Guild strike (which is still reverberating throughout Hollywood and affecting television and film slates), the Screen Actors Guild is threatening to strike over payment from Internet syndication. But never fear, A-list celebrities have stepped up to the plate. Yesterday, a crop of big-name stars (Clooney, Freeman, Theron, Hanks) published an open letter on the web denouncing the strike efforts. They noted the current economic climate and said the actors could get better terms in a few years. On the opposing side, Martin Scorsese and Mel Gibson came out in support of SAG and a fight. Prepare for Hollywood's fists to come out, just in time for Oscar season.