Is there any more thankless task for an actor than to play a famous performer from the past? Especially one as clearly defined in the audience's mind as Marilyn Monroe? You not only have to live up to the legend, but dig underneath the surface to find the soul of a person whom the public knew only by her carefully crafted public persona and the pages of the gossip magazines that made a fortune off of her image. Concentrate on looking and sounding the part and you're accused of simple mimicry, but if you ignore that aspect of the job then nobody will take your performance seriously. Michelle Williams, who at 31 can lay claim to being the most-fearless American actress...