When it comes to the Dark Knight Trilogy, Christopher Nolan's mistakes were few and far between. The cast was sublime, packing A-listers at every corner, and Christian Bale proved himself as Bruce Wayne. His Caped Crusader was physically tested in Batman Begins and The Dark Knight, with Tom Hardy's Bane then doing a mental job on him as well in The Dark Knight Rises. But Bale was always bigger than the role, leaving something to be desired with his take on Batman.
Source:https://www.cbr.com/brave-and-the-bold-fix-dark-knight-trilogy-mistake/