Michael Moore says he made his latest documentary, 'Capitalism: A Love Story,' as though it were his last. And it might be.

"I'm saying it's a possibility, yeah. Look, I love making movies. I think making a good movie is about telling a good story, and you can do that through fiction or nonfiction... I've made a body of work of nonfiction that I'm very proud of, and like any filmmaker, I'm looking for different challenges, and things that will keep me interested and excited about what I'm doing," Moore said at the Toronto International Film Festival.