Another not-so-dumb blonde, Oscar winner Renee Zellweger is a woman of considerable talent. She held her own opposite Hollywood A-lister Tom Cruise in her breakout role in Jerry Maguire back in 1996, delivering the infamous line "You had me at 'hello'". In 2002 she proved that she could sing and dance up a storm in Chicago and the following year her portrayal of Ruby Thewes in Cold Mountain won her an Oscar, but she'll always be Bridget Jones to us!