Superman IV: The Quest for Peace (1987)

As the world teeters on the brink of nuclear catastrophe due to escalating tensions between superpowers, Superman embarks on a mission to eliminate nuclear weapons. However, Lex Luthor, freshly released from prison, is determined to thwart the Man of Steel's noble efforts. He creates a formidable foe named Nuclear Man using a strand of Superman's hair, leading to a dramatic showdown that unfolds both on Earth and in outer space.