People always make that mistake when they talk about theatre - the notion of the 'theatrical' meaning something separate from life. If it doesn't relate to life, it doesn't relate to anything.
Other quotes by Brian Cox
Feudal societies don't create great cinema; we have great theatre. The egalitarian societies create great cinema. The Americans, the French. Because equality is sort of what the cinema deals with. It deals with stories which don't fall into 'Everybody in their place and who's who,' and all that. But the theatre's full of that.
The fact is that Hollywood, from as early as the sixties to the present time, has ghettoized cinema into the big industry, a marketing industry. In doing this, the audiences have lost touch with the aspects of film which were to be informative and educational and even spiritual.