From the 1966 feature film spun off from the hit TV series, this colorful half sheet showcases the United Underworld — Joker, Penguin, Riddler, and Catwoman — alongside Batman and Robin. The artwork is especially desirable as it brings together all four villains with the heroes, something not seen on most other U.S. poster formats for this title. A key display piece from the Batman craze of the 1960s, with strong cross-appeal for superhero, television, and pop culture collectors. This example is mounted to a heavy paper backing, a technique often used on smaller formats such as half sheets and lobby cards for added rigidity.