CANNES, France–Montreal-based Muse Entertainment confirmed Wednesday at MIPCOM that Jackie, their sequel to the controversial 2011 miniseries The Kennedys, is a firm go. The four-hour drama will again star Katie Holmes as the glamorous former First Lady. Tut bad guy Alexander Siddig will get padded up to play her filthy rich second hubby, Aristotle Onassis. The story will