A face that launched a thousand ships....
Well to be honest. It wasn't her face... She had so many suitors wanting to marry her for her fathers kingdom that he made them sign an alignment, stating that if anything was to happen to her, that they would fight for her.
That’s how this whole war got started. Anyways they really twisted and fucked this movie up so much. Its so far from how the real mythological story goes, I would suggest reading the book rather then wasting time to see a movie betray a story in such false lightening.