Clearly, if wed had the kind of computer graphics capability then that we have now, the Star Gate sequence would be much more complex than flat planes of light and color.

When I worked on 2001 - which was my first feature film - I was deeply and permanently affected by the notion that a movie could be like a first-person experience.

I honestly believe that the next big leap in immersive technology will be very much like Brainstorm.

My particular aesthetic of light and color and design wouldn't change as a result of working with computer graphics rather than with slit scan or miniatures.

The technology of the time dictated the way things looked.

But as far as the concept of HAL, who HAL was, his character - I had no role in creating him.

We're not that far from being able to plant images, memories, and emotional states directly into the brain.