Character mistake: Julie Madison, when having dinner with Bruce Wayne, says that he just called her Ivy. He didn't, and never does in that scene.
Batman and Robin (1997)
1 character mistake - chronological order
Directed by: Joel Schumacher
Starring: George Clooney, Arnold Schwarzenegger, Uma Thurman, Chris O'Donnell, Alicia Silverstone, Michael Gough
Revealing mistake: When Batman places the heaters around the telescope to thaw the ice, the frozen floor moves like plastic when he places the second heater. (01:45:00)
Alfred: There is no defeat in death, Master Bruce. Victory comes in defending what we know is right while we still live.
Trivia: Ivy's hair color changes slightly during the movie. In the beginning, it was pure red. During the movie they dyed the wig with orange to get different looks.
More questions & answers from Batman and Robin
Answer: Maybe she drained the cryo-tube first? Maybe she did get wet but had dried off by the time we see her again? Maybe Bane did it for her? Pick whatever answer works best for you. It's a really small, insignificant detail in the film with plenty of potential answers.
TedStixon
Thanks though keep in mind she wouldn't have a clue as to how it works since she's a botanist not a scientist in cyro genetics.
Rob245
She pulled the plug on the thing so Nora died and the tank drained (either automatically or Ivy did it). She just took the necklace off the body.
lionhead