As SAG-AFTRA members join writers on picket lines, the fallout will disrupt Hollywood film and TV productions worldwide. 'There's going to be blood in the water,' said one analyst. 'This will not end well.'

As SAG-AFTRA members join writers on picket lines, the fallout will disrupt Hollywood film and TV productions worldwide. ‘There’s going to be blood in the water,’ said one analyst. ‘This will not end well.’