Matt Damon is opening up about getting emotional after his new film got a standing ovation at the Cannes Film Festival.Damon walked the red carpet at the premiere of his new drama thriller,, on Monday, at the Rose Theater at Jazz at Lincoln Center in New York, and he opened up to ET's Rachel Smith about how he got choked up earlier this month after the successful Cannes debut.«I mean, I turned to the director [Tom McCarthy] and I was like, »I'm thinking I am getting old because I am really