It is about this very abstract sense of displacement that he feels the moment he turns off the television.

There is a certain moment in the film when the son is in the nursing home and he goes to the television and turns it off because he sees himself in the image.

The programme has ended, something has finished, and he has a sense of something having finished its course, and then all of a sudden he turns away and this other thing has just finished its course, this other person.

That is where the irony of the film comes off, in terms of the language it employs - where he tries desperately to be a 'TV Dad,' to give advice and it's so pat it becomes ridiculous.

These sorts of things can happen, identities can be switched, the emotional implications are something that he has not been trained to feel. His whole life has been about separating himself from these sorts of actions.

I suppose I had these concerns but I really felt that I had to keep my scope very, very concentrated.