At a starry affair Monday night – the Museum of Fine Arts opened a new show presenting the original Hollywood style with gowns worn by Mae West, Gloria Swanson, Carole Lombard – and a host of other leading ladies.  WGBH News Arts Editor Jared Bowen and Jill Radsken, style correspondent for the Boston Globe walk us through what these gowns tell us about the origins of Hollywood style.