Reese Witherspoon says motherhood made her a better person

Hollywood star Reese Witherspoon says she became a better person when she had her daughter Ava and always chooses her roles with her child in mind, as she wants to promote positive female role models.

Witherspoon has two children -- Ava, 20, and Deacon, 16 -- with former-husband Ryan Phillippe, and seven-year-old Tennessee...