Batman (also known as Batman: The Movie) is a 1966 American superhero comedy film directed by Leslie H. Martinson. Based on the television series, and the first full-length theatrical adaptation of the DC Comics character of the same name, the film stars Adam West as Batman and Burt Ward as Robin. The film hit theaters two months after the last episode of the first season of the television series. The film includes most members of the original TV cast, with the exception of Julie Newmar as Catwoman, who, in the movie, was replaced by Lee Meriwether.
https://en.wikipedia.org/wiki/Batman_(1966_film)
YouTube (paid) link if you prefer not using IA’s servers: https://youtu.be/U0PgQmZMCJ0
It’s so camp that it’s unironically a great film