Matt Damon's latest role, in this month's We Bought a Zoo, is a heartrending one. He plays a newly widowed dad who decides to make a major life change — and a fresh start — by buying and revamping a struggling wildlife park. We spoke to Matt at a recent press day for the movie, and he told us his own wife and children inspired his performance and admitted that he wouldn't have been able to take on the emotionally challenging role without having them in his life. Matt also talked about having his daughters hang out on the set and what surprised him about acting opposite animals on the project. Check out our interview and catch We Bought a Zoo when it hits theaters on Dec. 25!