Political differences about are to be buried in the dark on Thursday, when President George W. Bush plays scheduled host to members of the Kennedy family for a special White House screening -- dinner included -- of the movie drama "Thirteen Days." Kevin Costner stars in the flick, which is about President John F. Kennedy and the Cuban missile crisis. (Costner plays presidential adviser Kenneth O'Donnell, while Canadian actor Bruce Greenwood plays JFK.) Rep. Patrick Kennedy of Rhode Island, Maryland Lt. Gov. Kathleen Kennedy Townsend and Massachusetts Sen. Edward Kennedy have already accepted the invitation, say reports. However, the White House has yet to hear back from JFK's daughter, Caroline Kennedy and her husband, Edward Schlossberg, according to the Associated Press. Meanwhile, The Washington Post reports that the dinner with the movie will be a buffet of hot dogs and hamburgers.