The world would also not disagree. Apparently there's been enough buzz over that picture that she released an "I'm not anorexic" statement to the press. Just about every entertainment website/page has it.
http://www.sfgate.com/cgi-bin/blogs/sfgate...logid=7&cat=102
And I don't think, at least in the business of fame, the ladies get that thin to impress the general public of males. It's to impress the producers/people they want to be hired by, which is an entirely different thing. Or at least, it likely starts out that way, whether the pressure is real or imagined, if you know what I mean.
I'll also add that there are women who are naturally extremely thin. My brother's ex-wife was very thin and bony in hip and rib even after childbirth, and it was nothing about her eating. But she would never have worn that dress. heh.