Blue Ivy Carter has been cast as Kiara in Mufasa: The Lion King. The 12-year-old star will voice the daughter of her real-life mother Beyonce's character Nala in the highly anticipated Disney prequel revealing how Mufasa (Aaron Pierre) became King of the Pride Lands. The first trailer was released on Monday (April 29), confirming Blue Ivy as Kiara, Nala (Beyonce)...