The first trailer for the Lion King prequel/sequel, Mufasa: The Lion King, has quickly sparked some heated reactions online...many of them taking aim at the CGI on display. Set to be helmed by Moonlight director Barry Jenkins, Mufasa: The Lion King will tell the tale of the titular lion king while also introducing audiences to the daughter of Simba and Nala, a role that it has now been revealed will be voiced by Blue Ivy Carter.