She began working for De Niro and his wife, Grace Hightower, in August 2006, and says she was fired 10 months later - after she said she was going to quit. The couple have an 11-year-old son.
Barry says she is owed more than $40,000. She filed a lawsuit Friday in Manhattan's state Supreme Court.
De Niro spokesman Stan Rosenfield says he can't comment because he hasn't seen the lawsuit.
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