Legend has it that actress/singer Pia Zadora went out in a touring company of The Diary of Anne Frank. She wanted to prove that she could be a serious actress, not just a bimbo. By the time the troupe reached Indianapolis, however, her attempt at a Dutch accent was becoming laughable, and she tripped over much of the furniture. At the final matinee, her performance was hesitant, amateurish, and so annoying that -when the Nazi soldiers came to the house- the entire audience rose as one, pointing upwards, and shouting: “She’s in the attic!”
http://www.snopes.com/movies/actors/zadora.asp. Sorry, but this story is False
Actually, snopes.com does not say it is false just that it doesn’t “ring true” and that the same thing had been said of some other actors.