Watching Disney's latest animated blockbuster, Finding Nemo, I was struck by the subtext of the film. On the face of it, the film seems to be a typically innocent Disney adventure, in this case featuring the trials of a neurotic clownfish as he combs the oceans looking for his lost son. However, beneath this façade lurks a distinctly political agenda.

The leading fish, for example, is a single parent father, and his son is disabled with a stunted fin. A young seahorse has an intolerance to water. At the coral reef playground, all the anxious parents are male, with no women in sight. The male turtles are responsible for childcare. Even the sharks are struggling to become vegetarian.

Should we be worried by this obvious attempt by the American entertainment industry to brainwash children into believing this kind of post-modern disingenuousness? Are children being conditioned at an early age by the media to view political correctness as an unassailable secular truth? Are we setting them up for a fall in later life?

I don't think we should be too alarmed. In the playground, the highs and lows of adult life are played out in microcosm. Children are hard-wired to be competitive. They are sometimes nasty, but they learn human interaction, awareness and tolerance. This is all perfectly natural, and part of the process of growing up. It's going to take a hell of a lot more films about fish being nice to each other to change this biological fact.