David O. Russell's best films are thrilling high wire acts that run the moment to moment risk of tumbling to the ground. In his latest, "Joy," Russell has more trouble than usual keeping his balance on the wire.

David O. Russell's best films are thrilling high wire acts that run the moment to moment risk of tumbling to the ground. In his latest, "Joy," Russell has more trouble than usual keeping his balance on the wire.

In order to reinvent yourself, you have to dig deep and look at yourself. I'd lost my way creatively, and I was humbled, and so I think I got really basic about wanting to depict people in the ways that I find them amazing and funny and emotional and that I can relate to and do from an instinctive, gut place. People trying to survive ... That's what all my movies are about.

What we assert, very often can become our reality. To some degree, everybody can try to shape and control their fate. Everybody picks an identity.

And that is also what the movie's about, going beyond success, what is success 'cause I think success is misperceived as just a cake and it isn't. There is many things inside that success. There's a maturity and a heartbreak and sadness and broken glass.

I just love real characters; they're not pretentious, and every emotion is on the surface, they're regular working people. Their likes, their dislikes, their loves, their hates, their passions; they're all right there on the surface.

One of the things I've discovered at my age is I must have enchantment. And that was not clear to me in my earlier years. When I look at my favorite films, the Frank Capra - even Scorsese, even 'Goodfellas,' what makes that movie so remarkable is there's enchantment in their world.