The main races at the Kentucky Derby may be about the horses, but the women are there to compete in fashion -- namely those legendarily extravagant hats. This year, actress Zoe Saldana wore a one-of-a-kind chapeau designed by famed American Hat designer Eric Javits on behalf of Derby sponsor GREY GOOSE Vodka. But not just interested in the fashionable side of the day, Zoe autographed the hat to be auctioned off to benefit benefit the St. Jude Children's Hospital ...