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Reese Witherspoon, actress The now 40-year-old actress had her first child, Ava, when she was just 23. Although Witherspoon had started modeling and acting at an early age, and appeared in some notable roles in films such as 'Election' and 'Pleasantville' in young adulthood, full movie-stardom struck after she became a mother, with the film 'Legally Blonde' in 2001.

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