George Miller returns to the wasteland with “Furiosa,” the prequel to “Mad Max: Fury Road.” Warner Bros. released the first trailer for the action entry, which sees Anya Taylor-Joy shaving her head to take on the role of Imperator Furiosa, the fierce war captain that Charlize Theron played in the 2015 action film. The prequel, which is the fifth entry in Miller’s “Mad Max” franchise, follows a young Furiosa as she comes into her own after being taken away from the Green Place of Many Mothers and is immersed into a sinister world.