Mr Freeze is the anti-heroic secondary antagonist of Batman and Robin. He was greatly altered from almost every other incarnation to the point that many would consider this campy ala his first appearance as Mr. Zero.
He is portrayed by Arnold Schwarzenegger.
Batman & Robin
Mr. Freeze is a completely different character both in design and personality; he was (in)famously played by Arnold Schwarzenegger, and had some of modern cinema's most memorable "camp" moments, which has made him a controversial figure in the Batman mythos, with some fans enjoying the camp humor (somewhat akin to the old Adam West show) while others panned it for making Batman far too childish in nature.
Mr. Freeze planned on destroying Gotham City and was more openly omnicidal in this movie, using his freeze-ray to callously freeze pretty much anything in his path, though he did have a connection to his frozen wife (just as many other incarnations would do).
Mr. Freeze made an alliance with Poison Ivy despite the radically different philosophies of the two villains, though she would later prove to be a traitor who attempted to kill his wife and frame Batman for it. After Batman shows him that Ivy attempted the murder and Batman actually saved her, Mr. Freeze gave Batman the cure to stage 1 of MacGregor's Syndrome. Batman had Nora sent to Arkham Asylum so Freeze could continue his research. He also becomes Ivy's cellmate and vows to make her life a living hell for her treachery.