He's just not that into you
The movie started off in a children's playground with a little girl being abused by a little boy and then her mother telling her that he liked her that's why he did what he did. So as it continues, the theme continues about mixed messages from the opposite sex and failed interpretations of what thy really meant. Then several different women's lives begin to unfold with everyone offering opinions but missing the boat until toward the end when one finds Mr Right accidently, one gets divorced, one gets her live-in lover to pony up to get engaged and the others end up uncommitted and all ends well.
I'm going to have to see it again to completely understand it.