At the end of the movie when Catwoman and Max are on the platform, Batman is talking to Catwoman trying to convince her to come home with him. He has black make up around his eyes to compleat the mask, but he is going to take it off so the next scene, the make up is gone so his face will look normal, but it a really bad cut between takes.
That one was always pretty obvious, I'll admit, but the only way to have remedied it would have been to have the camera BEHIND Batman as he takes the mask off.