Though the film uses the closing sequences of Batman Forever as a springboard for its story, the look resembles the Gotham City seen in Tim Burton's Batman and Batman Returns. From the neo-gothic architecture, lighting, and the batsuit itself, the film pays homage to those on-screen environments.
The formal wear used for most of the citizens, for instance, was to create a connection to the wardrobes and costumes in those films, including The Animated Series which took similar influence.
The Riddler's costume was inspired by depictions from comics, film, and television; similarly, his technical expertise within Batman Forever influenced his lab in Batman: Revenge, including the chair, a deadly followup to his previous inventions.
Filming began on October 17th, 2003, with pre-production beginning earlier that year. Similar to live-action films using storyboards and animatics, two stop-motion animations (pictured below) were made first to help pave the way for principal photography.
The first showing was on December 12th, 2003, which was the 14-minute film along with several minutes of batmobile animations, raw footage, and deleted scenes. Three cuts of the film have been released, each having the same narrative. The original 14-minute film, made without sound effects, was followed by the 12-minute "Director's Cut" which trimmed parts of the film, color-corrected scenes, and added sound effects to accompany the score. Then edited to meet specific short-film guidelines, the 6-minute "Special Edition" followed, serving as an abbreviated version alongside the longer releases.