 In the opening credits, The Singer Midgets, who portray the Munchkins, are  not  billed under their real name, but as simply The Munchkins.In the cast list  at  the end, they are billed as The Singer Midgets. None of the actors who play  Munchkins are given an individual credit. In the posters and advertising  publicity for the film, the group was billed as The Munchkins.