Grease vs Titanic

Over the pond it's a battle royale for John Travolta. It would be if you're fighting the biggest floater in the world, with only a DA and a Pink Lady to hand. Still he's making a decent fist of it, as the re-issued Grease takes on Titanic. It's taken $13m, three times more than any other flic, and only slightly bettered by the boat. For you demographic fans out there, JT and ONJ pull 'em in on Friday, while Leo and Kate do the business at the weekend. Make sense of that