Gwyneth Paltrow and Chris Martin's son, Moses, has officially made his red carpet debut. Moses, 19, joined his mom at the Los Angeles premiere of her new movie, Marty Supreme, at the Samuel Goldwyn Theater on Monday, December 8. Paltrow beamed with pride as she posed alongside Moses, who dressed casually in a dark brown cardigan and matching dark brown pants and a white shirt. Paltrow, 53, wore a navy blue strapless floor-length gown and had her hair tied back.