George Clooney plays the Dark Knight, who's facing his deadliest threat yet: coldhearted Mr. Freeze (Arnold Schwarznegger) and venomous Poison Ivy (Uma Thurman). Batman has more than Gotham City to protect: The youthful eagerness of crime-fighting comrades Robin (Chris O'Donnel) and Batgirl (Alicia Silverstone) puts them frequently in harm's way. Very special effects include a wild skydiving sequence and Mr. Freeze's outregeous arsenal of ice-blasting weapons. Joel Schumacher directs.