George Clooney plays the Dark Knight, facing his deadliest threat yet: cold-hearted Mr. Freeze (Arnold Schwarzenegger) and venomous Poison Ivy (Uma Thurman). Batman has more than Gotham City to protect: the youthful eagerness of crime-fighting comrades Robin (Chris O’Donnell) and Batgirl (Alicia Silverstone) puts them frequently in harm’s way. New very special effects include a wild sky-surfing sequence and Mr. Freeze’s outrageous arsenal of ice-blasting weapons.