A、What is life. B、What is space. C、What is an astronaut. D、What is existence. C演讲中提到，“那时有一部斯坦利.库布里克主演的电影《2001年太空漫游》在上演。看过这部电影后，我

[20-1] When the great director Billy Wilder was asked what makes a movie unforgettable, his answer was simple, "A little bit of magic!" We’re all here tonight or sitting at home watching because something came off a movie screen; a little bit of magic touched our lives. And you always remember where you were: the theater, the popcorn, the people you were with when it happened. It was 1968, my family was living in Ottawa, Canada. [21] The movie was Stanley Kubrick’s 2001: A Space Odyssey. I couldn’t help stop thinking about what is life, what is space, what is existence. I was 6 years old. And I knew right then and there I wanted to be an astronaut.
    [22] My family traveled a lot; the white-hot thrill of Jaws that was Louisville, Kentucky; senior year, New Jersey Apocalypse Now, Valley Forge, Pennsylvania Raging Bull. I knew I wanted to be an actor. In good times and poor times, movies were my lifesaver.
    And then last September came an event that would change us. An actor friend said to me; "What are we doing? What are we doing? Is it important? Is it even important what I do?" And what of a night like tonight, should we celebrate the joy and magic the movies bring? Well, dare I say it? More than ever! [20-2] A small scene, a gesture, even a glance between characters can cross lines, break through barriers, melt prejudices, just plain make us laugh, it brings us all together, that little bit of magic. That’s just me.
    Tonight we are going to listen to you. Documentary filmmaker Errol Morris crisscrossed America asking movie goers and culture-makers a question: "What do movies mean to you?" And you answered. So let’s expand this beautiful stage into every one of your homes. And maybe even some of you will answer this question as you stand on this stage tonight, "What do movies mean to you?" So pull up a sofa. It’s just us talking. It’s Oscar night.
20. Being asked "what makes a movie unforgettable", what is Billy Wilder’s answer?
21. After seeing 2001: A Space Odyssey, what didn’t the speaker think about?
22. Where didn’t his family travel to?