It’s shopping as a full-contact sport and this year’s ‘Running of the Brides’ at Filene’s Basement in Boston (August 22) had a little something extra for the brides-to-be.  Filene’s teamed up with online wedding planning site to offer four lucky brides the chance to win a free wedding dress at the event.  “WeddingWire is about simplifying the wedding planning process, and what better way then to help future brides find their wedding dress,” says Sonny Ganguly, chief marketing office at WeddingWire.  “The Running of the Brides is one of the most distinctive and fun bridal events in the U.S., and the perfect way to find a great wedding dress at an unbelievable price.”  As soon as the doors opened at this annual event, hundreds of brides made a mad dash to the racks to find their perfect wedding dress at a rock-bottom price.