I'm going out on a limb here: I think Jerry Hall is marrying for love. I would imagine that Rupert Murdoch enjoys being with her, respects her, doesn't wish she were younger, and seems genuinely happy and delighted every day that he is lucky enough to be with her. Which would all be unusual feelings while dating in one's 50s.
In the movie world you would not expect a smallish screening for a movie like Rock the Kasbah to have a night like this, but Bill Murray has great karma. Rock legends turned out on Friday night: Sir Paul McCartney, Bruce Springsteen, Jon Bon Jovi, to start. And there was Bill Clinton, whose silver head shone like a beacon at the room's center.