Matt Damon arrived hand in hand with his lovely wife, Luciana, at tonight's NYC premiere of Contagion. The couple posed for photos before Matt went on to meet up with Marion Cotillard and director Steven Soderbergh on the red carpet. It was a wild day for Matt, who kicked things off before dawn with appearances on The Today Show and Live With Regis and Kelly. Matt touched on the seriousness of infectious disease, the focus of the film, and then switched gears to a lighter subject when he revealed he'll be dropping three of his daughters off for the first day of school this week. Marion arrived on the East Coast with her son, Marcel, recently and was also busy hitting the talk show circuit. She dropped by Late Night With Jimmy Fallon this afternoon and is scheduled to visit The Daily Show With Jon Stewart tomorrow. Matt and Marion's costar Gwyneth Paltrow stepped out to promote the film in Venice over the weekend, but tonight she missed out on the Big Apple screening. Instead, Gwyneth partied with friends in London.