“I wanted to—I say this in the introduction to the script book—I felt you could do a great deal more with sound than I had heard being done of late. The people who were exploring and exploiting where you could go with sound were people in the rock world—the Beatles, Pink Floyd, and so on. “I had the idea of scenes of sound. That there would never be a moment at which the alien world would let up, that you would be in it for half an hour. I’m not saying we necessarily achieved that, but I think that what we achieved came about as a result of striving after that.
