The convention is modern. Heroines and leading female characters haven't always been portrayed as themselves. Look at the daughter in "guess who's coming to dinner." maid Marion. How about the three vixens in "on the town"? It is of modern day our females are beginning to be allowed to celebrate in their flaws and neurosis.even more so now with these trashy Katherine heigel and Jennifer aniston hits. Bombshells who are neurotic with outlandish obstacles. I'm sorry, but what about that do you see timeless before the late 60's? .... Says the idiot.