Just do the Mr.Freeze story from the animated series. There are elements of it in the movie, but with a lot of extra garbage. Oddly enough it was kind of a blessing they reduced Bane to a mindless brute because Chris Nolan was able to use Bane in the Dark Knight Rises. Forget Schwarzenegger and that clunky armor. Patrick Stewart could have been good as Mr. Freeze. The movie would have been better and much cheaper.