I remember the excitement in the fan/comic community when it was revealed that Billy Dee Williams was playing Harvey Dent in the 1989 Tim Burton Batman film. Most Batman fans know that the Joker disfigures district attorney Harvey Dent with acid, causing his face to be horribly scarred and turning him into the villain Two-Face. So, everyone assumed that Two-Face would be in the next Batman movie (Batman Returns) and be played by Williams.
They didn’t use Two-Face until the third sequel, Batman Forever, and then the character was portrayed as a Joker rip-off and not the cunning, crime boss he is supposed to be. Even worse, Billy Dee Williams was nowhere to be found and was replaced by Tommy Lee Jones, who I’ll admit, looked visually like the character.