A filmmaker has almost the same freedom as a novelist has when he buys himself some paper.

The reality of the final moment, just before shooting [the scene], is so powerful that all previous analysis must yield before the impressions you receive under these circumstances, and unless you use this feedback to your positive advantage, unless you adjust to it, adapt to it and accept the sometimes terrifying weaknesses it can expose, you can never realize the most out of your film.

In any case, once you're dealing on a nonverbal level, ambiguity is unavoidable. But it's the ambiguity of all art, of a fine piece of music or a painting - you don't need written instructions by the composer or painter accompanying such works to 'explain' them. “Explaining” them contributes nothing but a superficial 'cultural' value which has no value except for critics and teachers who have to earn a living.

I will say that the God concept is at the heart of 2001 but not any traditional, anthromorphic image of God. I don't believe in any of Earth's monotheistic religions, but I do believe that one can construct an intriguing scientific definition of God, once you accept the fact that there are approximately 100 billion stars in our galaxy alone, that each star is a life-giving sun and that there are approximately 100 billion galaxies in just the visible universe.

It's a mistake to confuse pity with love.

Bad films gave me the courage to try making a movie

You either connect or you don't connect. It's not the end of the world. It's a movie.