The 22-year-old lofty brunette unveiled her lofty beauty and stole the limelight from her famous father Arnold Schwarzenegger at the premiere of his film, Sabotage, in New York on Tuesday. Christina - who wrote a book Rock What You've Got three years ago - looked chic in black leggings and a shiny biker boots and wore a smear of red tint on her lips to the screening of the new action flick.