In 1989 I was 10 when I saw the billboards for The Batman Movie. I'd never seen anything like it. I was too young to see it in the cinema, so my only experience til then was the Adam West TV show, and begging my mum to buy me UK reprints of Alan Grant and John Wagner's run on Detective Comics. And when I saw the movie (on video!) my life was changed forever. The suit, the car, the cape... And The Joker. Jack Nicholson blew me away.
Still love it to this day, must have seen it hundreds of times. For me, the film is perfect. The Prince Soundtrack is the bomb too!