If there is one positive thing that I can personally say about Batman & Robin, it is that I love watching Arnold Schwarzenegger chew the hell out of the scenery as the ice-pun spewing Mr. Freeze. For this we can thank Joel Schumacher, who gave Schwarzenegger quite a reason to take the role, as he says the following from Shadows of the Bat: Batman Unbound:
"Joel Schumacher… came to me and said that he would like me to play Mr. Freeze. I said to him, ‘This sounds very interesting. Let me think about it. He’s really a great character to play.’ And Joel, then, turned to me and said, ‘Well, just so you know, if you decide not to do it, I will not direct the movie because I only can do this movie if you play Mr. Freeze.’ So, what are you going to do, you know? Screw up a whole movie? He made me like I would make this whole thing fall apart if I am not part of it. So, he made me feel like, you know, King Kong. So, I called him the next day, and I said, ‘You know what, Joel? I’m going to do Mr. Freeze.’"
I mean, if you think about, watching anyone else in the role would probably not be quite as fun.