Casting news alert! More actors have signed on for Disney's live-action remake of "Mulan." <br />Chinese actress Liu Yifei, (aka Crystal Liu), plays the heroine role, Mulan.<br />Known for his role in "The Expendables," Jet Li may play the emperor of China. He's currently in casting talks. <br />Donnie Yen is joining the cast as Commander Tung, Mulan's mentor.<br />Gong Li of "Memoirs of a Geisha," will play Shan Yu, a new witchy villain.<br />The live-action remake is fashioned after 1998 animated Mulan film. <br />
