I remember staying up all night waiting to see the first screening of Cape Fear because you knew that every time Robert DeNiro had a performance it was going to be revelatory. Then DeNiro hit this place, he seemed like he was done with the emotional cost of impaling himself like that, and he dedicated himself to comedy.

And the best films feel like a fist punching you in the solar plexus and all elements of the filmmaking process - the acting, the design, the cinematography, the music, is all working to one end.

When you start becoming really successful, the demons start to tempt you - the demons of vanity and self importance, drug abuse, the feelings of fraudulence. But, it's also a thrill. That's what I found weird.

Depression is a real demon in the woods for a lot of creative people, you know? It's part of what the documentary is trying to be about for me, finding balance, where the beauty that is attainable in the creative arts can be matched with the scratchy roughness of regular life.

If you say to yourself, okay, I will not self-destruct. I don't have to be the most talented person. I don't have to be everybody's best friend, I don't have to be liked, I don't have to be successful, well, one thing I will not do is self-destruct. If you take that out, your chances for success just went up like 800 percent.

I don't know what has happened to movies, but lately every movie is at least 20 minutes too long. It used to be that if you were three hours long it was because it was epic - a movie about Gandhi; something with very important subject matters.

It just makes sense to remember gratitude and the place that gratitude should have in your life, and that none of us are owed these wonderful experiences, and we should always make the best of them.