Matt Damon Out with Isabella

"He's a good daddy," Matt Damon's trainer at Equinox in miami beach, Robert Severiano, tells Us of the first time father, 35. And while strolling with his one month old daughter, Isabella, and his wife, Luciana, 30, in New York City July 4, the star proved it. "he was very into the baby," says a witness of the trio's meander in the Big Apple, where he was shooting additional scenes for September's The Departed. "Matt was looking inside the stroller a lot, making sure they had all the supplies they needed and making sure that everything was OK. It was all about the baby." Though the role of doting dad is new, it's one for which the actor was ready. "Fatherhood is definitely appeaing, "Damon said prebaby. "I've longed for it in real life."

Source: US Weekly