We all assumed that it was her natural hair color but we were wrong.
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But with their varied screen roles often requiring them to do everything from gaining or losing weight to adopting a new twang, it's a given that transforming their looks with a splash of hair dye is a common occurrence.
Legend has it that Luc Besson saw Natalya Rudakova walk across the street and seconds later cast her as the femme fatale in Transporter 3.