What I look for is identifying what the utility of a character is to the telling of the story overall. If I can identify that from reading the script, then I've got a clear idea of whether or not I think the character is worth playing.

You always have to know what the ambition of the scene is, what the purpose of that scene is in the telling of the story overall, so that you're there to support the story.

As a matter of fact, that was a bit of a problem for me at the beginning of my career - the problem of identification. In The Conversation I played a character who was gay, so nobody recognised me from American Graffiti. When I did Apocalypse Now, after Star Wars, I played an intelligence officer of the American army. George Lucas saw the footage I had done and didn't recognise me until halfway through the scene.

I just like the process of taking something written on a sheet of paper and giving it life and shape. I like the collaborative process of filmmaking, which is all simply to say that I love my work and I would continue to look for things that have the potential to be engaging and successful.

I was 35 when I first hit with Star Wars. I had some degree of maturity and some degree of experience, yet physically I still looked young. That had been an impediment early on in my career, but then it turned out to be an advantage.

I get an opportunity to communicate with the audience about the movie that I've made. I get the chance to bring attention to the film that I've made. I care a lot about the movies that I make. I want them to reach an audience, and I want them to be successful. I promote nearly everything that I do, unless I've got some bad taste in my mouth.

There have been times in my life when I have felt I was lonely, but I don't think you want to live your life in order to mitigate against loneliness.