Nicole Kidman is an Oscar-winning actress with a slew of celebrated performances on the big and small screen — but even bona fide moviestardom doesn't make her career particularly interesting for her daughters.Kidman walked the red carpet at the Los Angeles premiere of her new film at the Academy Museum of Motion Pictures on Monday, and she spoke with ET's Nischelle Turner about her past remarks in which she said her kids were her «biggest critics.»The celebrated actress said she's actually