Found this matte painting on ebay of a Gotham that looks a little more like 89
(https://i.postimg.cc/76x7vnnL/Untitled-1-copy.png)
Batman Returns Script (not sure which revision)
(https://i.postimg.cc/hXRvn2cZ/s-l1600.jpg) (https://postimg.cc/hXRvn2cZ) (https://i.postimg.cc/FfZ7D0tW/s-l1600-1.jpg) (https://postimg.cc/FfZ7D0tW) (https://i.postimg.cc/xJpqSY1L/s-l1600-2.jpg) (https://postimg.cc/xJpqSY1L) (https://i.postimg.cc/p59rW7m4/s-l1600-3.jpg) (https://postimg.cc/p59rW7m4) (https://i.postimg.cc/qggzxt1w/s-l1600-4.jpg) (https://postimg.cc/qggzxt1w) (https://i.postimg.cc/6TSTj9SX/s-l1600-5.jpg) (https://postimg.cc/6TSTj9SX) (https://i.postimg.cc/1fqXbkhN/s-l1600-6.jpg) (https://postimg.cc/1fqXbkhN) (https://i.postimg.cc/hX8jtVGD/s-l1600-7.jpg) (https://postimg.cc/hX8jtVGD)
I found this catalogue of movie props that were on display for an auction a few years ago. We get a good look at the Batmobile discs that were used to strike against the some of the Red Triangle Gang members.
(https://i.imgur.com/LWcXTBX.jpg)
This video shows concept art that was never used. The only pictures I hadn't seen before were the sketches of Batman gliding with his cape and having yellow eyes, and a Catwoman mask made for Annette Benning.
https://youtu.be/dPm2kDZ6cNw
I don't remember this photo of Michelle Pfeiffer in make-up was seen before, but it's the first time I've looked at it. Naturally, she looks great.
(https://i.imgur.com/M8tQO2t.jpg)