Gossip Girl Leighton Meester keeps box office disappointment under her hat as Country Strong flops

By DAILY MAIL REPORTER All smiles: Leighton Meester pictured on the set of Gossip Girl in New York today If Leighton Meester was feeling disappointed that her new movie failed to set the box office alight, then she certainly didn't show it.The 24-year-old actress was spotted on location filming Gossip Girl today with a huge grin on her face - despite Country Strong flopping over the weekend. Th...