Dressed in elegant black, her hand in a patriotic pose, Mila Kunis made good on a promise and made one serviceman just back from Afghanistan, the happiest guy at a military gala this past week. The “Black Swan” star attended a Marine Corps ball Friday night with Sgt. Scott Moore. “It’s good that she gets to come on a date with a marine so it’s good for her, you know,” said Corporal William Steffy.