Batman: The Dark Knight Returns (film) arrested. Injured, Batman returns to the Batcave with Kelley, and allows her to become his protégée in spite of protests from his butler, Alfred Pennyworth. Batman has Kelley disguise herself as a Mutant, and she lures the gang to a sewer outlet at the West River. At the Gotham City Police Department, the Mutant leader murders the mayor during negotiations. Commissioner Gordon deliberately releases the leader, providing an escape from the building, which leads to the sewer outlet. Before the amassed Mutants, Batman fights the leader in a mud pit; the mud slows the leader, removing his physical advantage, and
Batman this, editor Julius Schwartz was assigned to the Batman titles. He presided over drastic changes, beginning with 1964's "Detective Comics" #327 (May 1964), which was cover-billed as the "New Look". Schwartz introduced changes designed to make Batman more contemporary, and to return him to more detective-oriented stories. He brought in artist Carmine Infantino to help overhaul the character. The Batmobile was redesigned, and Batman's costume was modified to incorporate a yellow ellipse behind the bat-insignia. The space aliens, time travel, and characters of the 1950s such as Batwoman, Ace, and Bat-Mite were retired. Bruce Wayne's butler Alfred was killed off