Matt Damon and his wife, Luciana, became the proud parents of a baby girl, Gia Zavala, on Wednesday, his rep confirms to In Touch. "Everyone is great," Matt's rep tells In Touch. "She's healthy and beautiful." Gia joins 2-year old sister Isabella and half-sister Alexia, 10, who is Luciana's daughter from a previous relationship. Matt and Luciana have been married since December 2005.