Greek Goddess
One icon of beauty portrays another in the Public Theatre's take on Helen of Troy<br> by Blake Green<br> IS THIS the face that launched a thousand ships? Well, no. But had life dealt you this hand - make that face - there'd be scant cause for complaint. So it's hardly a stretch that Donna Murphy, the subject of this observation, is playing the title role in "Helen," a new play about that mythological beauty from Tro…