Way back in 1992, WB had greenlit a Catwoman spin-off after BATMAN RETURNS gave the character a popularity boost, with Tim Burton set to direct a script by Daniel Walters, and Michelle Pfeiffer coming back.
Walters took his sweet time writing the script, and only turned it in in 1995, on the very same day BATMAN FOREVER came out and shifted the gears of the franchise towards a more kid-oriented direction, where his dark and gritty script was the odd man out. The plot saw Pfeiffer's Selina Kyle relocating to an idyllic, Steppford-esque small town where her wild ways mark her as an outcast. She soon finds out the founding fathers are corrupted and planning to destroy the whole town, and becomes the unlikely hero to save the community.
The script accumulated dust for a while until WB scrapped it off in 2001 and tried to make it happen with Ashley Judd taking the lead and axing the direct references to BATMAN RETURNS, but the stars didn't align until Halle Berry became involved, and along with her came a heavy script rewrite phasing out Selina in father of OC DO NOT STEAL Patience Philips and a magic-tinted story.
We all know how that turned out.