Fashion must make Zoe Saldana hungry. After sitting in the front row of Michael Kors’ presentation at Lincoln Center this week, the “Avatar” star was seen dining with friends at Serafina on East 61st Street. After polishing off a pizza with pals, Saldana ordered another pie to go. At Kors’ show, she chatted in the front row with Jada Pinkett Smith and her daughter Willow, as well as Michael Douglas, Paz Vega and “The Face” mentor Karolina Kurkova.