For many, the Grand Prix Horse Show Jumping Competition at the 35th Annual Hampton Classic signifies the end of the summer social season. But according to the local insiders and several famous faces, the Hamptons are open year round. In the off season, one of the best things to do is attend the Hamptons International Film Festival. Mayor Michael Bloomberg, former Major Rudy Giuliani and wife Judith, Kelly Ripa, Christie Brinkley, Alec Baldwin and more open up about the Hamptons in the Fall social season.